Six on Saturday: Silver Highlights

Japanese painted fern A. ‘Metallicum’ grows with silvery Rex Begonias.

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Silvery leaves bring a cool sparkle and shine to summer pots, baskets and borders.  Gazing at them makes me feel a little cooler and more relaxed on sultry summer days.

Whether you prefer silver highlights, or shimmery silvery leaves, there are many interesting plants from which to choose which perform well in our climate.

Some silver leaved plants are herbs, with fragrant foliage rich in essential oils.  Grow Artemesia to repel pests, curry and sage for cooking, lavender for its delicious scent.  Some cultivars of thyme also have silvery leaves.

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Siberian Iris bloom here with Artemesia and Comphrey, both perennial herbs.

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Silver and grey leaved plants have an advantage because many of them prove extremely drought tolerant and most are perennials.  Perovskia atriplicifolia, Russian sage, isn’t a Salvia, but is a closely related member of the mint family.  An Asian native, it blooms in late summer and fall with light blue flowers.

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Dichondra ‘Silver Falls’ grows as both a ground cover and a beautiful ‘spiller’ in pots and baskets.  Drought tolerant, it grows in full to part sun.

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Dichondra argentea ‘Silver Falls’ may be grown as a ground cover or as an elegant vine draping a pot or hanging basket.  Winter hardy only to Zone 10 and south, we grow it as an annual here in Virginia.  It continues growing, like a living beaded curtain, until killed off by frost.

When I first saw it growing from hanging baskets in Gloucester Courthouse, some years ago, my first impression was of Spanish moss.  A closer inspection revealed a well grown planting of Dichondra.

Dichondra proves drought tolerant and I’ve never seen any difficulties with insect nibbling or disease.  Buy a nursery pot in spring, and then divide the clump to spread it around.  Dichondra also roots easily at each leaf node.

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Another perennial usually grown as an annual in our area, dusty miller, Senecio cineraria, works wonderfully as a ‘filler’ in potted arrangements.  It sometimes returns after a mild winter, but with much less vigor.  Several different cultivars of different sizes and leaf shapes fill our garden centers each spring.  Another drought tolerant plant, depend on dusty miller to make it through an entire season without any damage from deer, rabbits, or hungry insects.  Drought tolerant, many cultivars have textured leaves.

Similar in appearance, but hardy in Zones 4-8, Stachys byzantina, lamb’s ears, is another elegant perennial for bedding.  The fuzzy, textured leaves makes this Middle Eastern native perfect for children’s or sensory gardens.  Stachys shimmers in the moonlight and looks coolly elegant in full sun.  Drought tolerant, it sometimes collapses in a mushy mess when the weather grows too wet and humid.  I am beginning to wonder if our summers have grown too hot for it to thrive here.  It does return from its roots, eventually, if the plant dies back in summer

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Lamb’s Ears, Stachys Byzantium is grown more for its velvety gray leaves than for its flowers. In fact, many gardeners remove the flower stalks before they can bloom. Bees love it, so I leave them.

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There are several attractive silvery cultivars of Japanese painted ferns, including A. ‘Ghost’ and A. ‘ Metallicum.’  I like these in pots and borders.  Deciduous, they die back in autumn but return stronger and larger each spring.

And finally, many varieties of Begonias have silver leaves, or silver markings on their leaves.   Find silver spotted leaves on many cane Begonias and shiny silver leaves on some Rex Begonias.  The variations seem endless.  I use these primarily in pots or baskets, where they can be enjoyed up close.

I particularly enjoy silver foliage mixed with white, blue or purple flowers.  Others may prefer silver foliage with pink flowers.  Mix in a few white leaved Caladiums as a dependable combo for a moon garden or to perk one up on a hot and humid summer day.

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Silver foliage is drought tolerant and is often fragrant with essential oils. In the Iris border at the Williamsburg Botanical Garden, Artemesia ‘Powis Castle’ and Artemesia ‘Silver Mound’ grow with lavender, Salvias and Iris.

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Woodland Gnome 2019

Many thanks to the wonderful ‘Six on Saturday’ meme sponsored by The Propagator.

 

 

 

 

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About woodlandgnome

Lifelong teacher and gardener.

One response to “Six on Saturday: Silver Highlights

  1. Some of the chaparral plants have glaucous foliage, but it is not exactly silvery. It is just sort of gray. It is how they reflect some of the sunlight that would scorch them. (I don’t remember if light is divided into ‘frequencies’ or ‘wavelengths’ or something else.) It seems to me that the silver sorts o foliage are at their best in conjunction with rich green foliage or contrast. I am no designer though. Even some of the glaucous slavias look better in front of dark green junipers.

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