Six on Saturday: Color Winter Beautiful

Columbine emerges through a winter ground cover of Arum italicum in early March.

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Autumn colors our world with vivid hues of scarlet, orange, yellow and purple for a few short weeks as deep green summer fades into the browns and greys of late autumn and winter.  We distract ourselves for a while with bright and colorful holiday decorations.  But once past Boxing Day in late December, we wake up to the bare bones of our winter gardens.

Of all the year, this may be the stretch when we most keenly wish we had planned ahead for some color and interest in the garden.  Once the trees stand as skeletons against wintery skies, we look with fresh appreciation at every evergreen shrub and colorful berry left behind.

Many of our lawns lose their luster after first frost.  Most herbaceous plants die back and weather to shades of duff and brown, if they haven’t already turned to mush as Cannas and Hedychium so quickly do.

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Autumn Brilliance ferns, Mahonia and Edgeworthia chrysantha maintain a beautiful presence through the worst winter weather in our garden.  This photo was taken in late December 2016.

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Winter beauty relies on a subtler, more sophisticated sense of color and form.  We are called on to appreciate the wabi-sabi aesthetic of well-worn objects past their prime, like the weathered stalks and seed pods of perennials left standing in the borders and twigs etched against a cloudy sky.

Even woody vines add interest snaking through the trees or over rocks with delicately curled tendrils, or a few stalwarts, like our native honeysuckle, Lonicera sempervirens, still blooming late into January.  Native Carolina jessamine keeps its green leaves as it scrambles through roadside trees and over fences.

When planning for a beautiful winter garden, woody plants give us that consistent structure to bridge the seasons.  Interesting bark, beautiful form and early buds and bloom can turn an ordinary summer shrub into something spectacular and entertaining in a winter garden.

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Hellebores bloom reliably throughout winter. Here buds are already visible in early January of 2018.

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Evergreen shrubs like Camellias will bloom profusely both late into the season, and again in earliest early spring.  Camellia sasanqua bloom into January in our area, while Camellia japonicas will begin blooming in late February or March.   Mahonia offers yellow flowers for hungry bees in late autumn and  winter, and then plump purple berries for the birds in late spring.

Other early bloomers, like Forsythia and some Magnolias take our breath away before most other woody plants awaken.  Trees like alder and hazel ornament themselves with catkins that grow longer and more dramatic from October, before the leaves even fall, through until March.

There are also cold-loving herbaceous perennials and geophytes.  Arum italicum is already sending up its first beautiful leaves in our garden.  It will continue sending up new leaves throughout the winter filling otherwise empty borders with fresh and vibrant green.  These aroids produce their own chemical heat, melting any snow and ice that fall on them without turning crisp or brown.  They will bloom in April and May, then fade away again by June for a summer-time rest.

Hellebores are already sending up new leaves, too.  Their first flower buds will appear in December, and they will bloom prolifically until May.  Epimediums, sometimes called fairy wings, prove evergreen in our garden, with their often holly or heart shaped leaves.   Then they  burst into growth with new leaves and delicate flowers in earliest spring.

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Galanthus, snowdrops. often bloom through mid-winter snows.

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By February, the early Crocus, Galanthus and early dwarf Iris will break ground with delicate leaves and vivid flowers.  Plant Crocus tommasinianus, or Tommies, for earliest bloom.  The bulbs of this Crocus species have a taste unpleasant to rodents, and so won’t be dug up as squirrel or vole snacks.  It is always smart to spray new bulbs with an animal repellent as you plant them, anyway, and maybe to spray the bed or pot after planting, too, to discourage squirrels from digging.

Iris reticulata or Iris histrioides sometimes emerge in late January to bloom in February through March.  Plant them in a pot in a sunny spot on the patio for earliest bloom.  You might also plant clumps in a border for winter interest, and they thrive in a rock garden.  Like many other spring blooming geophytes, dwarf Iris bulbs appreciate hot dry conditions through the summer months. They usually bloom with the early snowdrops, Galanthus, and as the leaves of early Cyclamen coum emerge.  Plant them against a back drop of Cyclamen, Arum or Hellebore to make them pop.

Hardy Cyclamen form a beautiful and spreading groundcover during the winter months.  C. hederifolium emerge in October and persist past frost.  C. Coum emerge in February and persist until May.  They are very small, but their finely marked evergreen leaves and tiny pink or white flowers are exquisite.   Plant them in patio pots or under trees and shrubs.  Placement below trees is especially good as the ground will stay drier there during their summer dormancy.

Evergreen ferns, like the Christmas fern, autumn ferns and holly fern give winter color, too.  They may get a bit beaten down after a heavy snow, but their texture remains beautiful throughout the winter months.  When their new fronds appear in early spring, they add interest and drama when little else is going on in the garden.  Cut back older fronds as the new ones emerge.

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Evergreen mistletoe lives anchored to the branches of the trees, adding color to our garden once the leaves fall each autumn.

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Finally, even a tree’s bark becomes a thing of beauty in the winter landscape.  Exfoliating barks like those of crape myrtles and birch trees provide interesting texture as well as color.  Many Cornus species boast bright red or yellow winter stems, especially on new growth.  Red maples have red stems when young.  Some gum trees boast ‘wings’ in their smaller branches and twigs, and poplar and sycamore trees both have beautiful, light colored often mottled bark that shines on a bright winter day.  Oakleaf Hydrangeas hold onto their flowers and scarlet leaves, on beautifully shaped woody stems with peeling bark, until new buds emerge.

When we notice these small details, we find beauty in unlikely places.  The sparseness and subtlety of a winter landscape balances the exuberance of summer.  We go back to bare bones.  There is much less competition for our attention and much less to do in the garden.  We can breathe.  We can enjoy a few months of peace and quiet before we greet another spring.

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Camellia sasanqua blooms from November through January in our garden.

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Woodland Gnome 2020

 

Visit my other site, Illuminations, for a daily quotation and a photo of something beautiful.

In a Pot: ‘Companion Plants’

Begonia boliviensis from a rooted cutting

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Tiny plants in tiny pots, expressing a particular season, sometimes displayed alongside a potted tree, are called ‘companion plants’ or ‘accent plants.’

I particularly enjoy growing these little treasures.  They allow us to appreciate a plant, in all of its intricate detail, as a work of art.

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First, these precious little pots fit easily on a windowsill, side table or plant stand.  They can be grown year-round indoors, or moved out into a protected space during warm weather.

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Maidenhair fern with Pilea glauca, creeping blue Pilea. A division of the Pilea grows alone in the previous photo.

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But more importantly to me, these little pots allow me to ‘grow on’ very small plants, or rooted cuttings.  Once they begin to outgrow the little companion pot, they can be re-potted or planted out; used in a larger display, or grown on as a specimen in a larger pot.  This is especially helpful during the winter and early spring when small plants may be grown on for use outdoors in summer.

I buy many of my Asian ceramic companion pots and 1″-2″ companion plants at The Great Big Greenhouse in south Richmond.  They keep a tremendous selection of pots of all sizes, and offer a large display of Asian pots for Bonsai and companion plants year-round.  The pots in these photos were found at The GBGH.

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Coleus with Dichondra, Cuban Oregano, Tradescantia pallida and Lantana.

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Small companion pots are equally good for starting cuttings to grow on into larger plants.  I had a pot where the fern died back in early spring.  I put it outside in a protected spot to see if it might re-grow from the roots; without success.  So I am going to recycle the pot and soil to root some Coleus.

Coleus (now Plectranthus) are members of the Lamiaceae family, most of which root very easily from stem cuttings.

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Take a cutting by cutting or pinching off a stem at a node, where new leaves may be beginning to grow.  Four nodes are visible in this photo.  While many gardeners pinch out Coleus flowers, I let them flower because pollinators love them.

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Prepare the cutting by removing the lowest set of leaves and pinching out the flowers at the top of the stem.  It is usually better to use a stem that hasn’t flowered, as they will often root more easily. Rooting hormone isn’t really necessary with Coleus cuttings.  Feel free to use it if you have it, as it may speed up the process a bit.

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The same stem is now ready for ‘sticking’ into the soil.  Roots will form along the lower stem wherever it is in contact with moist soil, or even plain water.

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I took three cuttings today so the pot looks full right away.  After sticking the cuttings, water lightly, and set the pot into a protected spot…. or not.  I sometimes just stick a cutting where I want the new plant to grow, and hope for the best.

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I struck this cutting several weeks ago and it is now growing on in a pot on my front porch. It gets full sun for several hours a day. If the soil is kept hydrated, the Coleus should root in less than ideal conditions….

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The parent Coleus plant is growing very well this summer. Taking cuttings helps keep the plant bushy, and there is always a spot to fill with a cutting, isn’t there?

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Arrangements in companion pots are temporary plantings.   All things change, right?  Especially in gardening, we expect things to come and go.

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Three cuttings, struck into moist soil, will root withing a week or so. This arrangement can ‘grow on’ through autumn. Cutting back the tops as it grows will extend the life of the planting.  Or, the rooted cuttings can be re-potted into larger containers and kept as houseplants through the winter.  Coleus is a tender perennial.

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An aspect of the beauty of companion plants is their transience.  Favorite subjects in Asia might be ferns, grasses, wildflowers, flowering bulbs and vines.  Some may only be at their peak for a week or two.

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This little Ficus tree has a ‘companion’ in the same pot. A little footed fern grows long rhizomes which ‘visit’ other pots nearby on the windowsill.

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Some of the pots are as tiny as egg cups, and so can only hold a very small root mass.  Many have no drainage holes, and so I begin with a layer of fine gravel in the bottom of the pot.

I use gravel mulch, but a moss mulch is more common, and very lovely.  The moss really needs to live outside to stay plush, however.

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Companion plants in little pots are an affordable luxury for those of us who love to work with plants.

Even without an outside garden space, a little garden may be cultivated in a pot and enjoyed on a windowsill at any time of the year.

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Woodland Gnome 2019

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A Cool Fern for Shady Spots: Athyrium niponicum var. pictum ‘Metallicum’

Anthyrium niponicum var. pictum ‘Metallicum’

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There’s a new Japanese painted fern available to light up a dark corner in your garden.  I read about it this spring, and was very pleased to find it at a local nursery.

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Metallicum’ in a mixed planting with Caladiums. This photo was taken just after planting.  I expect everything will fill in for a lush effect by later in the season.

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Athyrium niponicum var. pictum ‘Metallicum’ sports a pale green frond with silver highlights.  It is bi-pinnate, with the center of each pinnule light and silvery, fading to a more medium green along its edges.  Like many related cultivars, ‘Metallicum’ has a beautiful red rib down the middle of each deeply divided frond.  New fronds emerge in a rosette, and several of these small clumps may fill a pot.

Each clump will eventually grow to around 18″ tall, growing a bit wider and fuller each year.   Expect this fern to die back after frost, to return larger and stronger in mid-spring.

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‘Metallicum’ with Caladium.  Both are very small divisions yet, nowhere near their mature size.

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Hardy in zones 4-9, this very hardy fern may be left in a pot through the winter in our Zone 7 garden, with high confidence that it will return in spring.  It will benefit from shade and shelter on our sweltering summer afternoons.

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Athyrium niponicum var. pictum in a mixed planting

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Japanese painted ferns, Athyrium niponicum var. pictum,  are very hardy, deciduous perennials that clump and spread.   They can be grown in rich moist soil in a garden bed, below shrubs, or in pots and baskets.

They make a nice ground cover under small trees, and I especially like them under a Japanese Maple.  Grow them in deep shade if you need to, but they will take partial sun.  Native to Asia, they will hybridize with other lady fern species.

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Oakleaf Hydrangea shares a pot with Japanese painted fern. Vinca and Mayapples carpet the ground under Camellia shrubs and deciduous trees.

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In fact, a very similar fern is the hybrid Athyrium ‘Ghost,’ which is a cross between our North American native  Athyrium felix-femina and Athyrium niponicum var. pictumA. ‘Ghost‘ can grow to 30″ after it is established and is hardy in Zones 4-8b.  Lady ferns tend to spread over time, and so this will form an expanding clump in moist soil in partial shade.  Easy to grow, the main rule is to never let the roots dry out completely.

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This is ‘Ghost’ in its second year in this bed, growing with Ajuga, Lamium and an autumn fern.

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I like the pale silvery glow of A. ‘Ghost,’ and have planted several of them over the years.  I always look for this particular fern at end of season clearance sales, and was very happy to find two in a flat of mixed potted ferns at our friends’ Homestead Garden Center a few weeks ago.  They sat in my holding area for the better part of two weeks, which accounts for the slight browning on some of the fronds.  Nursery pots generally need daily watering, especially with ferns.

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Here I am dividing a new acquisition of ‘Ghost’ into two parts before planting the smaller division into this hypertufa pot.  Notice the stems of each frond are a lovely burgundy, which contrasts so well with the fronds.

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Now that I’m able to plant them out, I am dividing the clumps growing in each nursery pot and spreading them about in larger pots with mixed plantings.  As each clump grows, I’ll eventually re-pot it or plant it out in the garden.

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This newly divided little Athyrium ‘Ghost’ is ready to grow in an old, hypertufa pot with a division of Dichondra ‘Silver Falls.’

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The entire collection of Japanese painted fern cultivars, native to Asia, perform extremely well in our garden.  I have collected a variety of them over the years.  They differ a little in color and size.  They vary from perhaps 12″ tall to about 36″ tall.  Some have more burgundy coloration; there is one I’ve not grown, A. ‘Lemon Cream,’ that is almost a creamy yellow.  The color of each frond shifts and changes as it ages, but all have a slightly silvery sheen.

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Athyrium niponicum ‘Branford Beauty’

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I was very excited to find Athyrium naponicum var. pictum ‘Godzilla’ at a shop last summer.  As you might guess from its name, this is a large cultivar that  introduced by Plant Delights Nursery about 10 years ago.  Their catalog claims it spread into a clump 36″ tall and nearly 7′ wide.  I can only wonder how long growth of this vigor takes; it hasn’t yet happened in our garden.

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The difference in coloration and form between ‘Ghost’ on the right and ‘Metallicum’ on the left is subtle, but noticeable.  “Ghost’ will grow a bit taller (2′) than will ‘Metallicum’ (12″-18”).

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The most interesting differences among the various Japanese pained ferns come in how their fronds are shaped and further divided.  Some have forked tips to their fronds, and the axis of each frond may twist and curl.  Some cultivars spread a little more aggressively than others, but all of them send up new clumps from their rhizomes and will continue to multiply and renew themselves as the years go by.

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Athyrium niponicum “Apple Court”

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Not only do the painted ferns grow well for us, but they can grow and prosper without getting grazed by rabbits and deer.  Ferns are generally safe from grazing, though I miss a frond of other varieties from time to time when deer have gotten into our garden.  But not from our Japanese painted fern cultivars.  They just keep growing and getting better throughout the season and better from year to year.  It may take a year or two for them to begin to bulk up and establish, but once they do, they are very persistent.

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I am looking forward to growing ‘Metallicum’ and seeing how it performs compared to our other varieties.  I am in a bit of a gardening lull at the moment as I wait for a recently discovered case of Lyme’s disease to clear up.  It took a few weeks from bite to rash before I realized that the slow to heal bite was causing my health concerns, and slowing down my progress on the usual early summer gardening tasks.  Our early and intense summer heat played their part too.

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I appreciate the doc who prescribed aggressively for me and expect to be back up to speed sometime soon.   But until then, I find myself giving plants away, or simply planting them into larger pots, until I can return to normal gardening.  I’m sure these hardy ferns will soon be growing in glowing good health and give a long season of enjoyment.

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Japanese painted ferns are a good choice for gardeners who want to enjoy their plants year after year without having to fuss with them.  Mulch them, water them, and let them grow…. 

I am sure that this newest cultivar in the collection, ‘Metallicum,’ will prove a beautiful highlight in our forest garden.

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Woodland Gnome 2019

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Here is another division of ‘Metallicum,’ ready to grow on in the shade of the larger autumn fern.

 

Pot Shots: Unity

Ajuga reptans ‘Black Scallop’ began blooming this week.

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Repetition creates unity.  As one of the most basic principles of design, it’s one often overlooked by enthusiastic plant collectors like me!

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The dark purple leaves of the Ajuga are repeated in this Japanese painted fern.  this is one of several containers I made from hypertufa in 2014.

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I’m often tempted to grow the new and novel plant; something I’ve not grown out before.  We’re lucky to have space enough that I can indulge that interest while also repeating successful plants enough to create a sense of unity.

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Each Ajuga plant sends out multiple runners, with a new plant growing at the tip of each, often forming roots in the air. The plants are easy to break off and casually plant in a new spot. I often use Ajuga both for groundcover and in pots.  Here, Ajuga and Sedum angelina form a groundcover under a potted shrub.

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What should one repeat?  There are many design tricks based on repetition that are very subtle, but create a sense of harmony and peacefulness.

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I plant a lot of Muscari bulbs in pots each fall, waiting for just this effect the following spring. Muscari may be left in the pot or transplanted ‘in the green’ elsewhere in the garden when the pot is replanted for summer.

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The most obvious consideration is to use the same or similar plants again and again.  Repeating the same plant across several pots within a grouping creates unity.  Repeating the same plant again elsewhere in the garden ties that grouping of pots to other elements of the landscape.

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I like to choose a plant that grows well in the conditions of an area of the garden, and then use that plant in several different pots within a group.  Maybe I’ll plant a group of basil plants, or a group of lavender and rosemary, accented with sage or thyme.  Some years I plant a group of different geraniums.  The individual plants may be different cultivars with slightly different leaf or flower colors, but there are unifying elements to tie them together.

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Buying multiples of the same cultivar of Viola each autumn, and then planting them across several different pots creates a sense of unity.

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It’s helpful to use perennials that grow fairly quickly, that may be divided easily or that self-seed, and that are fairly easy to find and inexpensive to buy.  Once I find a plant that grows well in our conditions I like to repeat it again and again.

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I plant divisions of Ajuga, creeping Jenny and Sedum in various areas as ground cover.  They spread and cover more fully each year. Native strawberries occur here naturally, and quickly spread each spring.  I will eventually weed these out, even though they are good plants for wildlife.

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Because perennials often shine for a few weeks and then take a background role, or even go dormant for a few months, a gardener can eventually design a garden that changes every few weeks, but still has interest over a very long season, by using perennials thoughtfully.

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Japanese painted fern, Italian Arum and creeping Jenny repeat in this bed near the arrangement of pots.  The color scheme is basically the same (at the moment) in both this bed and the grouping of pots.

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Another way to create unity is to choose pots of the same or similar material, color and design.  Perhaps they are the same color, but varying sizes.

You may own thirty pots, but if they are all in the same limited color palette, there is unity.  Some designers will use a set of identical pots, evenly spaced, to create repetition along a porch, path, deck, or balcony.    This is a very formal approach, and would probably look best with the same rather formal planting in each pot.

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I favor blue glazed pots. This one held a lavender all winter, which is still a bit scraggly before its new growth comes on.  A native violet grows here instead of a hybrid Viola, but the color scheme remains the same.

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Combinations of colors also creates unity.  The plants themselves may be different, but if you use the same colors again and again whether in a group of pots, or throughout the garden as a whole, the eye perceives harmony and consistency:  unity.

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Annual Alyssum covers the soil beneath the Clematis.

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Whether we are making gardens, paintings, food, poetry or music, setting ourselves some parameters allows for creativity and expression within those self-imposed boundaries.  It may actually guide us into being more creative.

By removing some options prima facie, we are left to improvise with more focus among those choices we have left.  What we create will perhaps be more pleasing, more interesting, and perhaps even more beautiful than if we took a laissez-faire, scattershot approach to design.

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Woodland Gnome 2019

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Green Thumb Tip #13: Breaching Your Zone

It is time to save our favorite Alocasia before our first freeze of the season, tonight.

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We expect frost tonight, the first of the season.   In fact, the forecast suggests that we may have temperatures in the 20s overnight; the result of an approaching cold front and gusty winds from the north all day.

We can’t complain.  Here in Zone 7, we know that frost is possible any time from October 15 on.  We’ve escaped the inevitable for nearly an extra month, and tonight is the night.

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Alocosia ‘Stingray’ in August, with Begonia ‘Griffin’ behind.  Both came inside today for the winter.

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Bringing tender plants in for winter remains one of our annual rituals here in our forest garden.   We procrastinate as long as possible, to give the plants every day possible out in the air and sunshine.   We’ve found that even tender tropicals will survive a few nights in the 40s better than a few days in the garage, and so have learned to wait until we are sure that we have a freeze warning before we gather them back indoors.  Moving them back and forth several times over our long fall really isn’t practical; we wait for the last possible moment to commit.

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Colocasia ‘Mohito’ is marginally hardy in our area. I couldn’t lift this pot, but brought all of the divisions of the plant indoors today.

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Preparations for the ‘great migration’ included doing a little homework to refresh my memory about the lowest temperatures some of our plants can tolerate, before they turn to mush.  Nearly all of our Begonias won’t tolerate any freezing at all.  The hardy ones are mostly dormant, already.

But the Aroids, the Alocasias and Colocasias, have different degrees of cold tolerance.  Unlike Caladiums, which like to stay cozy at 50F or above, some Colocasias remain hardy to Zone 6.

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Colocasia ‘Pink China’ has proven hardy in our garden. It spreads a little more each year and grows lush and reliable from May until November. I expect to find this whole stand knocked down by frost when we come out tomorrow morning.

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When we talk about  USDA agricultural zones, there are three variables in play; all very important for which plants you may grow.  First, dates of first and last frost are pretty standard across a given Zone.  For example, here in Zone 7, we expect our first frost around October 15, and our last freeze around April 15.  That gives us a solid six months of outdoor growing season, which means we can raise lots of different sorts of crops in our zone.  There is sufficient time for a plant to develop, bloom, and ripen fruit.  A few miles to the southeast, nearer the Atlantic, Zone 8 begins.  Zone 8 has later first frosts (November 15) and earlier last frosts (March 15).

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Colocasia have runners, and each runner will create a new little plant. These special stems run just at ground level. This is how a dense stand develops from a single plant. Were you to visit my garden, I’d offer you as many of these little Colocasia plants as you would take!

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So knowing your Zone (updated in 2012,) not only tells you how many weeks of the year you have a 50% chance or greater of having freezing temperatures, at least overnight; it also tells you how cold those temperatures may go.   Here in Zone 7b, we may experience a low between 5F-10F.  Most winters we never drop below the teens, here, but it is possible.  Zone 8 may have temperatures down to 10F, but Zone 9 wouldn’t expect temperatures to drop below 20F.

Knowing this helps me make choices about what to bring inside, where  to keep overwintering plants, and what to take a chance on leaving outside until spring.  When space is limited, hard choices must be made if one wants to share the house with the plants for the next six months!

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Colocasia ‘Tea Cups’ is hardy to Zone 7b. I still brought many of these plants in to hedge my bets, since we are right on the edge….

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If a plant is hardy to Zone 8, we sometimes have success keeping it outdoors when we provide mulch or significant shelter.  In a mild winter, we may not dip below 10F to begin with.   Plants with deep roots may be mulched, or may have a little shelter built around it with most anything that will trap and hold heat on those few cold nights.  Our patio is a great place to offer potted plants shelter through the winter.  It offers shelter from the wind, and also absorbs and holds a bit of heat on sunny days.

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A plant rated to Zone 9 or 10 will definitely need to come indoors in our area.  But because Aroids have a dormant period over winter, we can keep them in our low light but frost free basement.

As Colocasias and Alocasias grow more popular, enthusiasts are left deciding whether to try to save them for another season, or whether to start next season with fresh plants.   Sometimes space determines our choices, other times our budget.  That said, I’ve found four ways to keep these beautiful plants from one season to the next.

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Colocasia ‘Black Magic’ is hardy to Zone 8. We were fortunate to have one overwinter in a protected area, and this is an off-set I dug up in August to grow on. It is now safely tucked into our garage for the winter.

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I found two of our most spectacular Alocasias back in February, at Trader Joe’s.  They were right inside the door, with a few other pots of ‘tropical’ plants.  Because I recognized their leaf, I bought two, intending to use them in large pots to frame our front door all summer.  What came home in a 4″ pot, grew over summer into a huge and beautiful plant.  I learned today that their roots had completely filled the 20″ pots they have grown in since early May.

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This Alocasia, originally from Trader Joe’s, wasn’t labeled when I bought it last winter. It reminds me of A. ‘Regal Shields,’ but grows a bit larger.

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I can barely slide those pots when they are well-watered.  And, I plan to re-plant them for winter interest.  There was no question of trying to move them into our home or garage to overwinter the plants.

But last night I did my homework, and spent a while searching out how others have managed to overwinter large Alocasias.  Since the plant goes dormant, it can be kept, barely moist, out of its pot in a frost free basement or garage.    So I pried each of my beautiful Alocasias  out of their pots this morning, and lowered each, root ball intact, into a large paper grocery bag.  I’ve set the bags into shallow plastic storage boxes in our basement.  The leaves will wither; the soil will dry.  But life will remain in the plant, and I can pot it up again in spring for it to continue growing.

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How many plants? I didn’t count…. But here are four grocery bags filled with Aroids to sleep through winter in the basement.

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I decided to hedge my bets again this winter by storing our Aroids in a variety of ways.  While I’ve brought a few indoors in smaller pots to either keep growing in our living room, or slowly go dormant in our garage or basement; a great many got yanked from their pots this morning and stuffed into grocery bags.  Now the Alocasias will mingle for the next few months with A. ‘Stingray,’ C. ‘Mohito’, and C. ‘Tea Cups.’

C. ‘Tea Cups’ is supposed to be hardy in Zone 7.  Actually, we had one overwinter in a very large pot last year, but it was slow to emerge and never grew with much vigor over summer.  So again, I hedged my bets.

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A. ‘Stingray’ came home in a 4′ pot this spring. It has grown prodigiously, and there were several small off-sets. I pried these out of the wet soil, and am storing them in the grocery bags for winter.

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Remember, all of these plants create off-sets.  So, I left a few plants growing in the circular bed we began in spring.  But I pulled up enough to replant the bed next spring, if those don’t survive winter for whatever reason.  I have a few C. ‘Tea Cups’ overwintering in moist soil in pots, and others set to go dormant in paper grocery bags.

The very small divisions of Colocasia ‘Black Magic’ that I potted up in late summer came in to the living area in their pots, along with  A. ‘Sarian’ and a few A. ‘Amazonica‘.   I can give them window-sill space and keep them growing.  Even if you don’t have space to keep the largest of your Aroids, chances are good that there will be a small off-set that you can save over winter.

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For plants like Begonias and Brugmansias, which don’t create off-sets, consider taking cuttings if you need to conserve space. If you don’t have room for the whole pot or basket, cut a few vigorous branches to root in a vase or jar near a window.

Cuttings placed in water now will root, and may be potted up in early spring.  I always have Begonia cuttings rooting in vases of water, but I brought a few more cuttings in today.  We just have too many pots of Begonias to save them all.  But I am careful to save some of each variety.  Because plants like Begonias root so easily in water,  once you have a variety, you can keep it going indefinitely.

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Many, many plants will root in water.  I’ve experimented over the years with keeping many genus of plants going, because the nursery trade just isn’t that dependable when there is a particular variety you want to buy in spring.   Maybe you’ll find it, but maybe its shelf space will be given over to something newer or more fashionable, and your favored cultivar just won’t be available in your area.

My friends know that even if I had a good sized greenhouse, I’d soon fill it to the rafters like some botanical Noah’s Ark.  As it is, our living space is filled, once again, with my coterie of plants.  My partner is blessedly patient with my horticultural obsessions.

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Begonia ‘Richmondensis’ is an angel wing Begonia which performs well in a hanging basket.  A perennial in Zone 10,  you can overwinter it in its pot, or as a cutting.

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There is no shame in letting ‘annuals’ perish when winter finally blows into your garden.  But your Zone doesn’t have to limit what you can grow, and winter doesn’t have to destroy your beautiful collection of plants.

Master a few handy hacks, and you can keep your favorite warm-weather plants growing (and multiplying) indefinitely.

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A. ‘Amazonica’, also known as ‘African Mask’, grows vigorously in a large pot. I’ve kept this pot going for several years by letting it over winter in our living room..

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Woodland Gnome 2017
“Green Thumb” Tips: 
Many visitors to Forest Garden are amazing gardeners with years of experience to share.  Others are just getting started, and are looking for a few ‘tips and tricks’ to help grow the garden of their dreams.

I believe the only difference between a “Green Thumb” and a “Brown Thumb” is a little bit of know-how and a lot of passion for our plants.

If you feel inclined to share a little bit of what YOU KNOW from your years of gardening experience, please create a new post titled: “Green Thumb” Tip: (topic) and include a link back to this page.  I will update this page with a clear link back to your post in a listing by topic, so others can find your post, and will include the link in all future “Green Thumb” Tip posts.

Let’s work together to build an online resource of helpful tips for all of those who are passionate about plants, and who would like to learn more about how to grow them well.

‘Green Thumb’ Tip #1:  Pinch!

‘Green Thumb’ Tip #2:  Feed!

‘Green Thumb’ Tip #3 Deadhead!

‘Green Thumb’ Tip #4 Get the Light Right!

‘Green Thumb’ Tip #5: Keep Planting!

‘Green Thumb’ Tip #6: Size Matters!

‘Green Thumb’ Tip # 7:  Experiment!

‘Green Thumb’ Tip #8  Observe

‘Green Thumb’ Tip #9 Plan Ahead

Green Thumb Tip # 10 Understand the Rhythm

Green Thumb Tip # 11:  The Perennial Philosophy

Green Thumb Tip #12: Grow More of That! 

‘Green Thumb’ Tip:  Release Those Pot-Bound Roots! from Peggy, of Oak Trees Studios

 

Evolution Of A Container Garden

April 2, 2017

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It is a rare gardener who doesn’t enjoy designing container gardens.  Whether filling a barrel or a basket, a simple clay pot or a beautiful glazed pot from Asia; we can try out ideas for plant combinations in a perfectly controlled environment.  Whether you are simply filling the pots by your front door, or creating an object of art for the season coming, container gardens give us months of enjoyment.

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November 27, 2016 soon after planting H. ‘Snow Fever’ along with some Viola starts and Creeping Jenny Vine.

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Container gardens made in autumn, for enjoyment during winter and early spring, present special challenges and special opportunities.  Finding plants which will grow and look good from December into March can be a challenge.  Ice, snow, and frigid, drying wind present challenges for most plants.

But the ability to spice up a potted arrangement with spring bulbs presents a challenging opportunity for the gardener to plan in four dimensions. We can look forward in time to how the bulbs will grow into their potential, interacting with the other plants in our arrangement, months into the future.

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November 30, 2016

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Autumn planted container gardens give me particular pleasure.  Planted in late October or November, once summer’s annuals have grown shabby, these arrangements will grow and enliven our comings and goings for the next six months.

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Our beautiful geranium in June, which lasted well into fall and past the first few frosts.

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It was already well into November of 2016 when I finally emptied this large white pot of its geranium.  We enjoyed this particular geranium all summer for its vivid, generous flowers.  After it survived the first frost or two, I moved it to a nursery pot in the garage to hold it over for spring, and re-did this pot which stands permanently on our driveway near the back door.

And I refilled the pot with a beautiful Helleborus cultivar that I spotted for the first time this fall, at a local garden center.  I was intrigued by its variegated leaves, and wanted to watch it grow and bloom close up, in this pot we pass daily.

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Helleborus argutifolius ‘Snow Fever’ shows intriguing new growth by January 4, 2017.  The Muscari have grown leaves through the moss mulch.

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It was quite small when we purchased it, but its few leaves promised a beautiful display coming.  This cultivar is a Corsican Hellebore, Helleborus argutifolius, which is a bit more tender than the Helleborus orientalis we more commonly grow.  Corsican Hellebores generally have white, or green tinged flowers.  These were advertised as creamy white, outlined in rosy pink.

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By late January, we could  see the beginnings of flowers and tender new leaves.

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When I re-worked this pot in November, I removed most of the Creeping Jenny vine, leaving only a little to grow on through the winter.  Creeping Jenny can take a pot with its extensive root system.  I planted some of the little Viola starts I had on hand to provide a little additional interest while waiting for the Hellebore to bloom.

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February 15, 2017

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I had not yet purchased any Grape Hyacinth bulbs, but knew I wanted them in this arrangement, too.  It took me several weeks to finally buy the white Muscari, plant them, and finish the soil surface with moss.

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February 23, 2017, on a rainy day, the flowers have begun to bloom.  Holly berries fall into the pot and need picking out from time to time.

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It was already mid-December by the time the potted arrangement was completed.  The Hellebore, ‘Snow Fever,’ was beginning to show some growth.  In a partially sunny spot, warmed by the drive and the nearby garage, this potted arrangement has shelter from the wind on three sides.  Even so, it has weathered inches of snow, night time temperatures into single digits, ice, and wind.

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By late March, a month later, the Creeping Jenny has grown in and the Muscari have emerged. Grass, embedded in the moss, has grown in, too.

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I am very happy with how the whole arrangement has come together.  I’ve not only come to love this cultivar of Hellebore, but I’ve also learned that this combination of plants looks great together. ( In retrospect, I almost wish I had planted a white Viola rather than the red.  But the red certainly ‘pops!’ against the other colors!)

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April 2, 2017

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I will plan to plant more white  Muscari this fall  around Hellebores out  in the garden.  Moss makes a beautiful ground cover around Hellebores.  And for all of its vigor, Creeping Jenny, Lysimachia nummularia, works well in winter container gardens.

It began growing quite early and has filled out nicely this spring, in time to compliment the flowers.  Its chartreuse leaves work well with the pale Helleborus’s colors and with the Muscari.  Creeping Jenny remains evergreen when planted out in the garden, and forms an attractive ground cover around perennials and shrubs.

When planning your own container gardens, especially ones to enjoy through the winter, remember that foliage is as important, or maybe even more important, than flowers.

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This H. ‘Snow Fever’ grows elsewhere in the garden, sheltered under tall shrubs. Its new leaves begin almost white, and green up as they grow.

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The foliage in your arrangement will fill your pot for many weeks longer than the more transient flowers.  So try to include a  plant or two with showy, interesting leaves.  Besides Hellebores; Arum italicum, Ajuga, Lysimachia, Heuchera and evergreen ferns do well in our climate.

It is only early April.  This container garden will continue to grow and change until I reclaim the pot for another geranium.  When I do, everything growing here now will be planted out into the garden.  All are perennials, save the Viola, and will grow for years to come.

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When constructing your own container gardens, follow a few simple tips to get the most from the plants you choose:

  1.  Choose a large enough container for all of the roots to grow.  Bulbs produce large root systems.  If you plant a lot of bulbs, the pot will get very congested unless you begin with a large pot.
  2. Choose plants with similar needs for light, moisture and soil PH. Plan for your plants to grow to different heights for an efficient use of space.  Soften the pot’s edges with a vine or other plant which will spill over the side.  Plan for a succession of interest falling on different plants as the season progresses.
  3. Don’t overstuff the pot.  Magazines and books on container gardens often feature mature plants packed in tightly.  If the pot looks ‘finished’ from day one, your plants aren’t left with much room to grow.  The strong will crowd out the weak, and none will grow to their full potential.  Leave room for growth in your designs.
  4. Begin with a good quality potting mix, and stir in additional fertilizer at planting time.  I often re-use at least some of the potting mix from the previous season.  But I stir in Espoma Plant Tone before adding new plants, finish with fresh potting soil, and generally top dress the finished container with a slow release product like Osmocote.
  5. Mulch the top of your finished planting with gravel, moss, or some other mulch.  It keeps the foliage cleaner in heavy rains and helps conserve moisture.
  6. Boost the plants from time to time with an organic liquid feed from a product like Neptune’s Harvest.  Fish and seaweed based products add important trace minerals and help the soil remain biologically active.
  7. Groom plants regularly to remove spent flowers, brown leaves, and any trash which has blown or fallen into the pot from other nearby plants.  Pull small weeds or grass as they sprout from a moss mulch.  If a plant is struggling or dying, don’t hesitate to pull it out.
  8. Place your pots where you will see them daily.  Enjoy their ever changing beauty as they brighten your days.

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    Woodland Gnome 2017

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‘Green Thumb’ Tip #10: Understand the Rhythm

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Philosophers speak of ‘The Music of the Spheres.”  Since ancient times, we have understood the musicality of nature.

Not only is the physical world based in pure mathematics, as is music; the sounds created by Earth, sea and sky flow together as a symphony.  Everywhere there is sound:  pitch, rhythm, harmony and the melodies found in the voices of whale, wind, bird, cricket and human.

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Morning Glory vines are annuals in our climate, but drop their seeds each summer. These prolific seeds germinate in early summer and the vines bloom from mid-summer until frost.

Morning Glory vines are annuals in our climate, but drop their seeds each summer. These prolific seeds germinate in early summer and the vines bloom from mid-summer until frost.

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Our gardens grow to their own rhythms, too.  And the wise gardener comes to know these rhythms as closely as their own heartbeats.

Understanding the growth rhythms of the seasons in your own region, and the rhythms of the various plants you grow, allows a gardener to work confidently with nature.

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These Morning Glory vines scamper over roses and Lantana.

These Morning Glory vines scamper over roses and Lantana.

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Not understanding these basic rhythms can set you at  cross purposes to the unfolding happening around you.  And worse, ignorance of a plant’s natural rhythms can lead to a lot of unnecessary stress for the plant and the gardener!

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These hardy Begonias share the pot with the perennial Heuchera. There are a few spring bulbs, too, which will begin growing in the months ahead. The Caladium 'Florida Moonlight' will need to come out before frost. But these plants can all share the same space and take center stage at different seasons of the year.

These hardy Begonias share the pot with the perennial Hellebore. There are a few spring bulbs, too, which will begin growing in the months ahead. The Caladium ‘Florida Moonlight’ will need to come out before frost and will be replaced with Violas. But these plants can all share the same space and take center stage at different seasons of the year.

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What rhythms does an effective gardener understand?  Well, first, we must feel the rhythms of the seasons.  This is different for each place, as one season melts into the next.

The official dates of solstice and equinox, new moons and full, frost dates and summer heat help us begin to feel this rhythm.   But the fine details are learned through years of observation.

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For example, there is a great deal of ‘see-sawing’ between hot days and frosts here each autumn and each spring.  We might have roses blooming until mid-December after a brief November snowstorm.

But we might also have days over 80F in March followed by snow in April.  Temperature changes prove gradual and unpredictable here, and we have to pay attention to the daily forecast.

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Autumn roses are the best. Our shrub is recovering from summer drought and beginning to produce roses again.

Autumn roses are the best. Our shrubs are recovering from summer drought and beginning to produce roses again.

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Beyond climate, there is the rhythm of each plant we grow.  So many prove ephemeral, appearing and disappearing quite suddenly with the seasons, like our Hurricane Lilies.

It helps to know what plants are annuals in our region and are ‘gone forever’ once they die back, and which will return.  What plants grow from ever multiplying bulbs and tubers?  Which plants have perennial roots?

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Our 'Hurricane Lily,' Lycoris radiata, just suddenly appears when its time is right. We often forget where the bulbs are planted year to year so they are always a delightful surprise.

Our ‘Hurricane Lily,’ Lycoris radiata, just suddenly appears when its time is right. We often forget where the bulbs are planted year to year so they are always a delightful late summer surprise.  The vinca Minor vines growing as ground cover remain evergreen, but bloom with the Daffodils each spring.

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When rain was abundant this spring, I started a new nearly full-shade garden bed  filled with ferns,  Caladiums, and a few low perennials.

It was coming along beautifully, until our hot spell in late July and August came while I was spending a great deal of time out of town.  My watering fell behind here, and by the last week of August many of the plants appeared to be dead or dying.

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The new garden on July 18, when there still was abundant rain. All of the new plants were growing well.

The new shade garden on July 18, when there still was abundant rain. All of the Caladiums and ferns were growing well.

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I was so disappointed in myself to have allowed all of these beautiful new ferns to ‘die.’

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september-6-2016-morning-garden-031

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I started watering intensively here, and then Hermine brought us a good day and a half of cool, cloudy wet weather.

And, ‘Voila!’ Even though the fronds of my potted Athyrium niponicum may have all shriveled in the drought,  their roots survived.  And today I discovered new growth in the pots.   What relief!

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These hardy ferns aren’t evergreen and so die back each autumn.  They won’t be seen again until early spring, when their new leaves emerge.

But now I’ve learned they can survive a drought in the same way they survive freezing temperatures; they pull their life back into their roots.

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Spring bulbs have begun to grow in ths container, also recovering from August's drought.

Spring bulbs have begun to grow in this container, also recovering now from August’s drought.  The Sedum can root from any part of the stem and remains evergreen through our winters.  The Creeping Jenny is also a perennial here.

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So many plants will survive in one small part of the plant; whether seed, bulb, root, rhizome or tuber.  Knowing this lets us move from season to season with confidence, knowing how to help our favorite plants not only return, but also multiply.

When will each appear, grow and bloom?  When will they disappear again in the cycle of the year?  Which seeds can we scatter with confidence that they will germinate and grow?

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This perennial butterfly Ginger Lily will die back to the ground after frost, but its rhizomes spread each year. These will bloom from the end of August until killed by frost in November.

This perennial butterfly Ginger Lily will die back to the ground after frost, but its rhizomes spread each year.  The plants return in May and grow all summer, topping out at 7′-8′ tall.  These will bloom from the end of August until killed by frost in November.

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Plants come and go with the seasons.   The appearance of our garden may change radically from one month to another.

Learn these rhythms and time your ‘doings’ and ‘not-doings’ to work in harmony with them.  This is one of the hallmarks of a true gardener.

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september-6-2016-morning-garden-039

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“Green Thumb” Tips:  Many of you who visit Forest Garden are amazing gardeners with years of experience to share.  Others are just getting started, and are looking for a few ‘tips and tricks’ to help you grow the garden of your dreams.

I believe the only difference between a “Green Thumb” and a “Brown Thumb” is a little bit of know-how and a lot of passion for our plants.  If you feel inclined to share a little bit of what YOU KNOW from your years of gardening experience, please create a new post titled: “Green Thumb” Tip: (topic) and include a link back to this page.  I will update this page with a clear link back to your post in a listing by topic, so others can find your post, and will include the link in all future “Green Thumb” Tip posts.

Let’s work together to build an online resource of helpful tips for all of those who are passionate about plants, and who would like to learn more about how to grow them well.

‘Green Thumb’ Tip #1:  Pinch!

‘Green Thumb’ Tip #2:  Feed!

‘Green Thumb’ Tip #3 Deadhead!

‘Green Thumb’ Tip #4 Get the Light Right!

‘Green Thumb’ Tip #5: Keep Planting!

‘Green Thumb’ Tip #6: Size Matters!

‘Green Thumb’ Tip # 7:  Experiment!

‘Green Thumb’ Tip #8  Observe

‘Green Thumb’ Tip #9 Plan Ahead

‘Green Thumb’ Tip:  Release Those Pot-Bound Roots! from Peggy, of Oak Trees Studios

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And suddenly, it is beginning to look like autumn here. Jones Mill Pond, as it looked last evening.

And suddenly, it is beginning to look like autumn here. Jones Mill Pond, as it looked last evening.

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Woodland Gnome 2016

‘Green Thumb’ Tip # 5: Keep Planting!

July 12, 2016 garden layers 013

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You’ve heard, “Nature abhors a vacuum.”

And gardeners know that any bare spot of earth, whether in a pot or in the ground, will soon sprout a weed.  That is why it is important to keep planting desirable plants in any space which comes vacant in the garden.

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Crabgrass seems to appear overnight this time of year, even through a layer of mulch.

Crabgrass seems to appear overnight this time of year, even through a layer of mulch.  Weeds grow quickly to fill any bare earth during the hot, moist Virginia summer.

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Gardening is a dynamic art.  Things rarely stay the same for two days running.  There is always growth and there is always decline.

Whether a plant simply finishes its season, like spring bulbs; is harvested; grows diseased; desiccates in the heat; or is eaten by pests; these plants need to be replaced as they disappear.  Experienced gardeners understand this rhythm and plan for it.

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As Arum itallicum nears the end of its season, its berries redden and its leaves wilt away. It will sprout new leaves in the autumn, growing strong and green all winter and spring. Calladiums will fill its place for the summer.


As Arum italicum nears the end of its season, its berries redden and its leaves wilt away. It will sprout new leaves in the autumn, growing strong and green all winter and spring. Caladiums  and ferns will fill its place during summer.

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Brent Heath, owner of Brent and Becky’s Bulbs in Gloucester, demonstrated this principle to me as we toured his gardens last month.  He showed me the packets of Larkspur and other seeds he routinely carries in his pocket.

When weeding, he sows what he wants to grow in any newly vacant spot.  If he harvests, he immediately plants.  Fading leaves in his Daffodil fields were first mown, and then overplanted with a summer cover crop to build the soil.  Prevent weeds from growing in the first place by sowing what you want the land to support.

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Spring bulbs will have faded and melted away by late May. What will fill their spot for the rest of the season?

Spring bulbs will have faded and melted away by late May. What will fill their spot for the rest of the season?

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If you observe a meadow, you’ll find a variety of plants all growing together, covering every bit of Earth.    They form a community.  This is nature’s way.  Keeping the ground covered slows evaporation, inhibits germination of weed seeds, makes the garden more productive, and simply looks nice!

Rather than allow for gaps in the garden as plants fade, have a plan to fill the space with a new plant.

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This Begonia, grown from a rooted cutting, will fill this pot until frost. Evergreen ivy and Dianthus carry it through the other seasons.

This Begonia, grown from a rooted cutting, will fill its pot until frost. Evergreen ivy and Dianthus carry it through the other seasons.

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There are several ways to accomplish this:

  1.  Grow bulbs and perennials which will always grow in a particular season, even if they disappear for the rest of the year.  Planted once, they fill their niche indefinitely. Plant something else over them as they fade.
  2. Root cuttings from plants as you prune, so there is a supply of rooted cuttings ready to go out to fill spaces when needed.  I keep Begonia, Impatiens and Coleus cuttings rooting through much of the year.  There are many annual and perennial plants which will root easily, some, like Pelargonium, can often be cut and then planted directly where you want them to grow.

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    A Coleus cutting will soon fill a gap left by faded Daffodils, and never filled by the Zantedeschia bulbs which failed to sprout this spring. Creeping Jenny and Dichondra are covering the bare soil.

    A Coleus cutting will soon fill a gap left by faded Daffodils, and never filled by the Zantedeschia bulbs which failed to sprout this spring. Creeping Jenny and Dichondra are growing over the bare soil in this pot.

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  3. Purchase seedlings seasonally to refresh pots, baskets, and garden beds.  Replacing spent summer annuals with Violas and ornamental Kale would be an example of this principle.  Likewise, winter annuals are pulled and replaced each spring.  Good garden centers will have small starter plants for sale year round.
  4. Sow seeds for annuals, herbs and vegetables as needed to quickly fill empty spaces.  This includes succession planting of edible crops such as lettuce, cilantro, carrots, spinach and radishes.  Herbs and fast vegetables like radishes can be sown in pots, window boxes, and baskets along with ornamental plants.

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    Iris is an easy perennial to divide to fill in spots. Although it only blooms once each year, the leaves fill the space year round, and continue to expand.

    Iris is an easy perennial to divide to fill in spots. Although it only blooms once each year, the leaves fill the space year round, and continue to expand.

    ~

  5. Divide perennials as needed and re-plant divisions to fill gaps and holes.  Many perennials will not mind having a division dug from the edge of the clump, and that division will grow on as a new plant.  This works better in the spring and fall, and during wet cloudy weather than during summer’s heat.  Divisions need to stay hydrated until their roots take hold.
  6. Plant ‘grocery store’ finds such as ginger roots, Jerusalem artichokes, garlic cloves, cactus pads, onion sets and even hydroponic lettuce sold still on its roots.  The grocery store is also a source for small pots of herbs and edible seeds.  Take a fresh look at the produce department to see what you can find that will grow on in your garden.

    ~

    Plant in layers so that if a plant is lost, others are already there to grow and fill the space.

    Plant in layers.  The tall plant in the pot is Colocasia ‘Coffee Cups.’  Daffodils filled this pot in April; their foliage just turning brown and melting away now in July.

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  7. Plant in layers, including a ground cover as well as mid-sized and larger plants.  If a mid-sized plant finishes or fails, the ground cover remains.  Other plants can grow to fill in gaps left by plants which fail or finish.
  8. Allow plants to spread and to self-seed.  Some plants will spread by rhizome, covering a bit more real estate as time passes.  They form clumps and colonies.  Other plants will spread their seeds around, appearing some time later in surprising places.  Allowing plants you admire to spread helps fill your garden at no additional expense.

    ~

    Coleus rooting in a jar makes a nice arrangement, and keeps a supply of rooted cuttings ready to plant where needed.

    Coleus rooting in a jar makes a nice arrangement, and keeps a supply of rooted cuttings ready to plant where needed.

    ~

    “Green Thumb” Tips:  Many of you who visit Forest Garden are amazing gardeners with years of experience to share.  Others are just getting started, and are looking for a few ‘tips and tricks’ to help you grow the garden of your dreams.

    I believe the only difference between a “Green Thumb” and a “Brown Thumb” is a little bit of know-how and a lot of passion for our plants.  If you feel inclined to share a little bit of what YOU KNOW from your years of gardening experience, please create a new post titled: “Green Thumb” Tip: (topic) and include a link back to this page.  I will update this page with a clear link back to your post in a listing by topic, so others can find your post, and will include the link in all future “Green Thumb” Tip posts.

    Let’s work together to build an online resource of helpful tips for all of those who are passionate about plants, and who would like to learn more about how to grow them well.

    Many thanks to Peggy, of Oak Trees Studios, who posted her first tip:  ‘Green Thumb’ Tip:  Release Those Pot-Bound Roots!  Please visit her post for beautiful instructions on how to prepare roots for re-potting.

    ‘Green Thumb’ Tip #1:  Pinch!

    ‘Green Thumb’ Tip #2:  Feed!

    ‘Green Thumb’ Tip #3 Deadhead!

    ‘Green Thumb’ Tip #4 Get the Light Right

  1. ‘Green Thumb’ Tip #6: Size Matters!

    ‘Green Thumb’ Tip # 7:  Experiment!

    ‘Green Thumb’ Tip #8  Observe

    ‘Green Thumb’ Tip #9 Plan Ahead

    ‘Green Thumb’ Tip #10: Understand the Rhythm

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    Volunteer Black Eyed Susans have colonized the sunny edge of this clump of Colocasia.

    Volunteer Black Eyed Susans have colonized the sunny edge of this clump of Colocasia.  Colocasia spread with runners and can be divided very easily.

    ~

    Woodland Gnome 2016

‘Green Thumb’ Tip #4: Get the Light Right!

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Giving each plant the right amount of light, without burning it or starving it, determines how well that plant performs.  Because plants ‘eat’ light, they must have enough to power photosynthesis and to accomplish all of their life processes.

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Many flowering perennials, like Iris, Lavender, and Cannas, want full sunlight for at least 6-8 hours each day.

Many flowering perennials, like Iris, Lavender, and Cannas, want full sunlight for at least 6-8 hours each day.

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Give a plant too little light and it grows leggy and pale.  The stems between its leaves s t r e t c h, reaching for the light.  Flower production slows and it looks a bit ‘sickly.’ It grows more susceptible to pests and to disease, fungal infections and general rot.

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This Calla, grown in partial shade last summer, grows better in full sun. The elongated petioles of the leaves are reaching up for the light.

This Calla, grown in partial shade last summer, grows better in full sun. The elongated petioles of the leaves are reaching up for the light.  It was also crowded after several years growing in the pot.  I divided the tubers, after this photo, and had five separate plants to grow on in better light.

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But too much light can fry fragile leaves and delicate flowers; especially hot summer sun.  Even ‘full sun’ plants appreciate some shade during summer afternoons in the southern United States.  It is harder to keep plants hydrated in full sun and hot weather.

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White and light colored leaves often want more shade than dark green ones. Here, Caladium, fern and perennail Begonia grow in shade cast by a Dogwood tree.

White and light colored leaves often want more shade than dark green ones. Here, Caladium, fern and perennial Begonia grow in shade cast by a Dogwood tree.

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How do we navigate both the weather, and the needs of our many different plants?

The MOST important question to ask when acquiring a new plant is, ‘How much light does it need?

Most nursery grown plants and seeds now come with little informational tags which indicate: full sun, partial sun, partial shade or shade.    That bit of information provides a start, but most of us need the experience of trial and error to master getting the light right!

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Though most Canna lilies prefer full sun, this variegated C. 'Stuttgart' wants partial shade and lots of moisture. The more sun it gets, the more moisture it wants. Notice the burned leaves? It probably wants more shade than this spot offers.

Though most Canna lilies prefer full sun, this variegated C. ‘Stuttgart’ wants partial shade and lots of moisture. The more sun it gets, the more moisture it wants. Notice the burned leaves? It probably wants more shade than this spot offers.  The nursery sent a note of warning about its needs when I purchased it this spring.

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Like everything else about gardening, the light is ever changing from morning to evening and spring thorough winter.  And of course, these conditions change in our garden as trees and shrubs grow, perennials expand, and of course when plants are lost.  Good gardeners learn through observation, and remain flexible.

When trying a plant for the first time, especially an expensive one, I think it is wise to start it off in a pot.  Why?  Pots are portable.  Unless you are absolutely sure you know where to plant something for it to get proper light, like planting Daffodil bulbs in the sun, starting off with a pot allows for easy experimentation.

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Our 'bog garden' got more sun last year than it does this year. The plants all started in pots, though I moved a few into the soil as the summer progressed.

Our ‘bog garden’ got a little more sun last year than it does this year. The plants all started in pots, though I moved a few into the soil as the summer progressed.  Colocasia will grow in sun or shade, but want more moisture in full sun.

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Although gardening books can be helpful guides to knowing how much light or shade a particular plant requires, the latitude and altitude of one’s garden determines the ferocity of the sun.  Climate also plays an important part in knowing how much ‘full sun’ a plant needs and can endure.  If most days are cloudy and rain falls frequently, less shade from buildings and trees will be required.  But if it rarely rains and day after day passes hot and clear, anything but a cactus will likely need a little afternoon shade!

Providing more moisture can help a plant survive a spot that is a bit too sunny and hot for its liking.

~

Foxtail ferns growing in an open area beside the path to Beverly Beach, OR.

Foxtail ferns growing in an open area beside the path to Beverly Beach, OR.  They grow in full sun in this cool, moist climate.

~

A fern growing in ‘full sun’ in coastal Oregon might burn up in a day or two in my Virginia garden, if not given some afternoon shade.

That is one reason why many experienced gardeners give themselves at least a year to come to understand a new garden before starting renovations.  It takes a full year of observation to understand how light moves through the garden during the course of a day and from month to month.

~

Older varieties of Coleus prefer partial shade, but these newer hybrids can take several hours of full sun each day.

Older varieties of Coleus prefer partial shade, but these newer hybrids can take several hours of full sun each day.

~

Even a single year isn’t enough to understand the subtleties of microclimates and exposures relative to structures; the prevailing winds; where water flows during a rainstorm; and where heat  lingers during the winter.  That is why patient observation is a gardener’s best ally when placing plants.

~

This first bloom on Canna 'Stuttgart' is an unusual color for a Canna. Still growing in a pot, I will look for a permanent spot with more shade since the leaves have scorched in this location.

This first bloom on Canna ‘Stuttgart’ is an unusual color for a Canna. Still growing in a pot, I will look for a permanent spot with more shade since the leaves have scorched in this location.  This variety enjoys moist soil.

~

Here is an experiment for you:  If there is a new plant you want to introduce to your garden, begin with several.  Plant them in different spots in your garden, give each the best care you can, and observe how they grow.  Within just a few weeks you may notice some doing better than others.  Why?

~

Echinacea grow well with a little afternoon shade in our garden. The Calla has much better color here than it did last year in its pot. All of these sun-loving perennials will have to be moved as the Star Magnolia grows into a tree over the next few years.

Echinacea grow well with a little afternoon shade in our garden.  It is planted in several different beds with varying degrees of sun.  The Calla has much better color here than it did last year in its pot. All of these sun-loving perennials will need to be moved as the Star Magnolia (right) grows into a tree over the next few years.

~

I quickly noticed that two identical pots, one on either side of our front porch, grew differently.  Why?

One side of the porch has more sunshine each day than the other, more shady side.  I can trade out pots every few weeks to keep them even, or experiment to find plants indifferent to the subtle difference in light.

After learning about each plant’s needs and preferences, and understanding what resources each zone of a gardener can offer, it becomes clearer how to design successful plantings.  It takes time; maybe years; to earn this knowledge.  We all make mistakes along the way, and hopefully count them as part of our education.

~

This tuberous Begonia grows in a pot 10 feet away from identical Begonias purchased the same day from the same nursery. They grow in a little more shade and have not yet bloomed. Although tuberous Begonias prefer partial shade, they need a filtered or morning sun to bloom well.

This tuberous Begonia grows in a pot 10 feet away from identical Begonias purchased the same day from the same nursery, and potted up with the same fertilizers. But the other plants grow in a little more shade, and have not yet bloomed. Although tuberous Begonias need partial shade, they still want plenty of  filtered light or morning sun to bloom well.  Moving the pot a little into more light might help the other Begonias bloom, too.

~

And this is why observation and flexibility make the difference between great ‘green thumb’ gardeners and mediocre ones.

When we realize that a plant isn’t happy where it is growing, we must either move the plant, or somehow change the conditions.  Knowing a plant’s needs and preferences up front helps us make educated guesses about how to grow it well.  When it shows stress, we can give it more favorable conditions, or discard it.

~

These Echinacea plants need a little bit more sun than they are getting. Their bed has grown shadier over the years. Though blooming, they look a bit 'ratty,' don't you think? I should move them.....

These Echinacea plants need a little bit more sun than they are getting. Their bed has grown shadier over the years. Though blooming, they look a bit ‘ratty,’ don’t you think? I should move them….. and plant something else which appreciates the shade…..

~

Likewise, if we realize that we have very little sun in our garden, or very little shade; we choose only plants that can thrive in our conditions.  Why watch a tomato plant languish in a shady, tree filled garden?  Tomatoes like all the sun you can give them, and require 6-8 hours of full sun each day to produce good fruit.  If you garden in a forest, as we do, it pays to make friends with the local farmers and frequent their farm stands!

~

These white Monarda are performing well in partial sun. A friend gave me several clumps last year, and I spread them around in different parts of the garden to see where they would do well. These in partial sun, near mature Lilac shrubs, have done the best.

These white Monarda are performing well in partial sun. A friend gave me several clumps last year, and I spread them around in different parts of the garden to see where they would do well. These in partial sun, near mature Lilac shrubs, have done the best.

~

Shade gardeners learn to take pleasure in ferns and Hostas, Azaleas, Caladiums and Begonias.  Those with sunnier gardens have better experiences with most herbs and vegetables, flowers for cutting, conifers and fruit trees.  Sometimes we have to adapt our expectations and desires to the growing conditions our present garden can provide!

We were startled, a few years ago, to lose several mature oak trees in a summer thunderstorm.  In the blink of an eye, much of our shady garden was transformed to an open, sunny, mulch covered field.  What to do? 

~

Bits of branch and bark form a foundation for the new raised bed.

Bits of branch and bark form a foundation for the new raised bed which became our ‘stump garden’ after losing our oaks.  Nearly full shade was transformed to ‘full sun’ in a moment, with the loss of three mature oak trees.

~

Challenges grow into opportunities, don’t they?  But the available light in a garden determines everything else about plant selection and vigor.  Moving a plant just a foot or so one way or another may change the amount of sun it receives each day.

That is why it is crucial to ‘get the light right!’  when designing our garden, and protecting our investment in the plants we grow.

~

Herbs hold the power to heal us. Our own garden in July-

Herbs hold the power to heal us. The ‘stump garden,’  two years later, planted with sun loving herbs and perennials.

~

“Green Thumb” Tips:  Many of you who visit Forest Garden are amazing gardeners with years of experience to share.  Others are just getting started, and are looking for a few ‘tips and tricks’ to help you grow the garden of your dreams.

I believe the only difference between a “Green Thumb” and a “Brown Thumb” is a little bit of know-how and a lot of passion for our plants.  If you feel inclined to share a little bit of what YOU KNOW from your years of gardening experience, please create a new post titled: “Green Thumb” Tip: (topic) and include a link back to this page.  I will update this page with a clear link back to your post in a listing by topic, so others can find your post, and will include the link in all future “Green Thumb” Tip posts.

Let’s work together to build an online resource of helpful tips for all of those who are passionate about plants, and who would like to learn more about how to grow them well.

Many thanks to Peggy, of Oak Trees Studios, who posted her first tip:  ‘Green Thumb’ Tip:  Release Those Pot-Bound Roots!  Please visit her post for beautiful instructions on how to prepare roots for re-potting.

‘Green Thumb’ Tip #1:  Pinch!

‘Green Thumb’ Tip #2:  Feed!

‘Green Thumb’ Tip #3 Deadhead!

‘Green Thumb’ Tip #5: Keep Planting!

‘Green Thumb’ Tip #6: Size Matters!

‘Green Thumb’ Tip # 7:  Experiment!

‘Green Thumb’ Tip #8  Observe

‘Green Thumb’ Tip #9 Plan Ahead

‘Green Thumb’ Tip #10: Understand the Rhythm

~

July 3, 2016 wet garden 018

~

Photos by Woodland Gnome 2015-2016

~

 

“The single greatest lesson the garden teaches

is that our relationship to the planet need not be zero-sum,

and that as long as the sun still shines

and people still can plan and plant, think and do,

we can, if we bother to try, find ways

to provide for ourselves

without diminishing the world. ”

.

Michael Pollan

~

July 3, 2016 wet garden 039

 

‘Green Thumb’ Tip #3: Deadhead!

Snap the stem of spent Pelargonium flowers where it meets the main stem to 'deadhead' as the flowers fade.

Snap the stem of a spent Pelargonium flower cluster where it meets the main stem to ‘deadhead,’ as the flowers fade.

~

We may grow flowers for their beauty, but from the plants’ point of view, a flower has but one purpose:  to produce seeds. 

Now, it is a noble purpose; the continuation of the species.  And that is why our beds are filled right now with little seedling trees and other ‘weeds.’ Our flowering trees do a fine job of seed production!

And certainly, there are many plants which we want to produce fruit and seeds.  Tomatoes come to mind...  But as you might imagine, it takes a lot of a plant’s energy and attention to produce those seeds; energy it might otherwise invest in producing more growth.

~

Pears grow from spring's flowers. Deer grazed these branches last summer.

Pears grow from spring’s flowers. Deer grazed these branches last summer.

~

If a plant produces flowers only once each year, say an apple tree, it is unlikely you’ll choose to deadhead spent flowers.  You might remove some to allow those left to grow  into larger and healthier fruit; but you’ll leave a few flowers to transform into apples!

~

Fuchsia flowers wither quickly, but more are waiting to open. Keep the faded ones trim away to keep new buds forming.

A Fuchsia flower withers quickly, but more are waiting to open. Trim faded ones away to keep new buds forming.

~

But many plants in our garden are grown for their flowers, not for their seeds.  And to keep those flowers coming, we need to ‘deadhead.’   The more we cut back the flowers once faded, the more flowers many plants will produce.  Along with ‘pinching,’ this frequent cutting inspires more branching, more growth, and more flowers!

~

Dahlia is a 'cut and come again,' flower: The more you cut, the more will grow for you to come and cut again!

Dahlia is a ‘cut and come again,’ flower: The more you cut, the more will grow for you to come and cut again!

~

This holds true for cutting flowers for a vase as well.  In this case we cut the flower just as it is opening to enjoy its beauty indoors.  But cutting the stem will still stimulate more flower production during ‘the season.’  This is true for many favorites in our ‘cutting gardens’ such as Dahlias, Zinnias, Coreopsis, Roses, and even for some Hydrangeas.

~

Columbine flowers will reliably produce seed when left on the plant.

Columbine flowers will reliably produce seed when left on the plant.

~

Sadly, it won’t work this way for most Iris, Columbine or Glads, which produce but one flush of blooms annually.

But beyond the utility of keeping our flowers coming on for a longer season, deadheading also keeps our plants looking their best.  Faded and drooping flowers are not very attractive.  Annuals, especially, look pretty ragged if we leave the dying flowers in place.  A little grooming, every few days, helps keep our flowering plants in top condition.  It is fairly easy and quick to do with a pair of garden scissors while watering the pots.

~

Petunias respond well to frequent grooming to remove faded flowers and elongating stems.

Petunias respond well to frequent grooming,  removing faded flowers and pruning elongating stems.

~

Some plants, like  Coleus and Basil, grown for their leaves; should have flowers spikes removed as they form, before they even ‘bloom.’  Basil leaves grow sparse once it blooms and seeds set.  It has accomplished its life’s work at this point, and is ready to ‘retire.’  Cutting the flower spikes before they bloom will encourage a longer season of leaf production and better quality leaves.

Most Coleus cultivars will also stretch out and get ‘leggy,’ with less impressive leaves, once allowed to bloom.  While those flowers are enjoyed by pollinators, each gardener must decide whether or not they want flowers on their Coleus.  If allowed to bloom, it is important to cut off the bloom spikes as the flowers fade.

~

When allowed to flower freely, Basil leaf production suffers. This Basil was grown for its flowers last summer. Pollinators love it and it is nice in cut flower arrangements. Goldfinches enjoy the seeds if they are allowed to grow.

When allowed to flower freely, Basil leaf production suffers. This Basil was grown for its flowers last summer. Pollinators love it and it is nice in cut flower arrangements. Goldfinches enjoy the seeds if they are left to grow.

~

Perennial flowers, which produce attractive seed heads and seeds enjoyed by our songbirds can present a special case.  Many of us want to leave Echinacea, Rudbeckia, Coreopsis, Asclepias,  and other perennial flowers to ‘go to seed’ in the autumn, giving some winter interest to the beds where they grow.

~

Coreopsis should be deadheaded until late in the season, when flowers may be left to go to seed for the birds.

Coreopsis should be deadheaded until late in the season, when flowers may be left to go to seed for the birds.

~

We enjoy watching Goldfinches and other small birds feeding on the seeds.  While we may choose to stop deadheading in mid- to late summer, deadheading spent blooms in the first half of summer will keep flower production going longer into the season.

~

Seed production is one of the many beauties of Arum Italicum. All from a single flower, these beautiful seeds will grow red by late summer. If collected and sown, each seed can produce a new plant by next spring.

Seed production is one of the many beauties of Arum Italicum. All from a single flower, these eye-catching seeds will grow red by late summer. If collected and sown, each seed can produce a new plant by next spring.

~

Woodland Gnome’s Caveat:  Many flowers will ‘self-seed’ if left alone.  When spent flowers are left on the plant, nature takes its course, producing viable seed, which will germinate to populate the garden for another season. 

We regularly find seedling ornamental peppers in pots where they grew the year before.  We also enjoy Petunias from seed, Violas, Hibiscus, Rudbeckia, and Columbine.  You can help this process along by harvesting and re-sowing desirable seed by hand.  Or, just ‘allow’ seedlings to sprout and grow on undisturbed soil. 

These self-sown gifts of nature  often prove hardier and stronger than anything brought home from the garden center.

~

Both this ornamental pepper, and the Petunia growing with it, came up as volunteers from seeds dropped by last year's annuals in pots.

Both this ornamental pepper, and the Petunia growing with it, came up as volunteers from seeds dropped by the previous year’s annuals.

~

“Green Thumb” Tips:  Many of you who visit Forest Garden are amazing gardeners with years of experience to share.  Others are just getting started, and are looking for a few ‘tips and tricks’ to help you grow the garden of your dreams.

I believe the only difference between a “Green Thumb” and a “Brown Thumb” is a little bit of know-how and a lot of passion for our plants.  If you feel inclined to share a little bit of what YOU KNOW from your years of gardening experience, please create a new post titled: “Green Thumb” Tip: (topic) and include a link back to this page.  I will update this page with a clear link back to your post in a listing by topic, so others can find your post, and will include the link in all future “Green Thumb” Tip posts.

Let’s work together to build an online resource of helpful tips for all of those who are passionate about plants, and who would like to learn more about how to grow them well.

Many thanks to Peggy, of Oak Trees Studios, who posted her first tip today:  ‘Green Thumb’ Tip:  Release Those Pot-Bound Roots!  Please visit her post for beautiful instructions on how to prepare roots for re-potting.

‘Green Thumb’ Tip #1:  Pinch!

‘Green Thumb’ Tip #2:  Feed!

~

June 26, 2016 deadhead 030

Yucca filamentosa blooms only once each year. But it will grow large and distinctive seed pods when left alone. We often cut back the stalks when flowering finishes for a neater appearance, enjoying just the leaves through the rest of the year.

~

Photos by Woodland Gnome 2015-2016

Our Forest Garden- The Journey Continues

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