
Novembr 27, 2018, I spotted two tough little Eastern Black Swallowtail cats munching on a lone fennel plant, left in a cleared out bed at the Williamsburg Botanical garden.
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Eastern Black swallowtails lay their eggs and their larvae feed on parsley and fennel. This bed was filled with Lantana, Salvia, and with fennel all summer, and hosted many butterflies from May until November.
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Butterflies covered this planting of Lantana at the Williamsburg Botanical Garden in August.
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When I told my friend Judith about the caterpillars, she came and rescued them the afternoon before a hard freeze, at the very end of November.
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Judith cared for the caterpillars until each formed its chrysalis, feeding them organic parsley in little habitats indoors; then she added them to her collection of living chrysalides. She cared for the sleeping caterpillars all winter and brought them over to our garden yesterday morning, just as they were ready to leave their chrysalides as butterflies.
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She named the two caterpillars rescued from the fennel at the botanical garden ‘Rough’ and ‘Tough’. They spent the winter pinned to this Styrofoam in her butterfly habitat.
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A total of three Black Swallowtail butterflies emerged during her visit yesterday morning. She generously set all three free in our garden. There were two males and a female. The amount of blue on the hindwings is the main way to distinguish gender in these swallowtail butterflies.
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Here Judith is releasing the first of the butterflies, a female. Then she invited us to help release the other two butterflies into the garden.
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The butterflies need some time for their wings to fully stretch, dry and toughen before they are ready to fly. We were able to hold and observe them as they prepared for their first flight.
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Would you like to attract butterflies to your garden?
The first step is to plant a variety of both nectar plants and host plants. Nectar plants attract butterflies, and host plants allow them to lay their eggs and will feed the larvae as they grow.
If you attract butterflies and host their larvae, it is important to commit to not using insecticides in your garden. Yes, the larvae will eat some leaves on their chosen host plant. The plants will survive.
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Fennel and parsley host several types of swallowtail caterpillars. Other easy to grow host plants include oak trees; spicebush, Lindera benzoin; paw paw trees, Dutchman’s pipevine, Aristolochia macrophylla; passionfruit vine, Passiflora lutea; and even common wood violets.
Most butterflies prefer very specific host plants and may only use one or two. For example, Monarch butterflies want Asclepias, or milkweed. There are several different species of Asclepias available, and most all of them will support Monarchs.
It is useful to do a little research on common butterflies that live in your own region, and then plant their host plants, if you don’t have them growing on your property already.
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This was the last of the three butterflies to emerge from chrysalis, and the last to be released. He wasn’t ready to fly, and so we gently placed him on this red bud tree, where he rested while his wings hardened. Finally, he also flew away into the garden.
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Butterflies need safe places to shelter out of the wind at night and during storms. Trees and dense shrubs serve them well. They also need places where they can ‘puddle,’ landing on the ground to drink water from mudpuddles, moist earth, or even shallow saucers filled with gravel and water. Butterflies need the minerals they absorb this way.
Butterflies will feed from a variety of nectar plants, including trees, vines, and flowering plants you may plant in baskets, pots or beds. Lantana is an absolute favorite source of nectar. Agastache, anise hyssop, attracts even more butterflies than Lantana! All Verbenas attract butterflies and are very easy to grow. The more flowers your garden offers, at a variety of heights, the more butterflies will likely stop by to visit your garden.
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We have seen a variety of butterflies in our garden already this spring, including Black Swallowtails. In fact, an hour or so after the release, we saw another Black Swallowtail laying eggs on an emerging fennel plant in the upper garden. This is one of the butterflies we released, resting before its first flight,
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There are many butterflies and moths native in Virginia and all of them are currently in decline. We have a network of dedicated butterfly enthusiasts in our area who rescue and raise cats, releasing the butterflies into the wild as they emerge. By protecting the butterfly larvae, they help insure that more individuals make it to the adult butterfly stage, mate, and increase the population.
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One of the greatest problems faced by butterflies is loss of habitat. The native plants they depend on to raise their next generation are often the ones removed for development, but not replanted by landscapers.
Gardeners can make a significant difference by providing a small bit of habitat in their own yard. Like a patch in a quilt, our own bit of habitat may be small. But, when many of us are all working together, we can provide safe places for butterflies to rest and refuel along their migration routes, and can provide safe and welcoming places for them to lay their eggs.
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Butterflies feed on Agastache ‘Blue Fortune’
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By working together, each of us providing a bit of habitat and safety for butterflies, we can help support the next generations of butterflies; making sure that our own grandchildren can enjoy these beautiful insects and share their magic with their own children, far into the future.
Will you join us?
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Woodland Gnome 2019
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An Eastern Tiger Swallowtail feeding on Verbena bonariensis ‘Lollipop’.