
A female Eastern Tiger Swallowtail butterfly feeds on Lantana.
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The beautiful Eastern Tiger Swallowtail shares our garden through much of the year. It is frequently the first butterfly we spot each spring and can be seen deep into autumn, enjoying our warm and sunny Indian summer days while seeking every last drop of nectar our flowers can produce.
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This is the first butterfly recorded by an English explorer on this coast of North America. John White drew an Eastern Tiger Swallowtail in 1587, while he was exploring Virginia with Sir Walter Raleigh’s third expedition. John White called his drawing “Mamankanois,” which is believed to be the native word for ‘butterfly.’ This beautiful butterfly received its official Latin name, Papillio glaucus, from Carl Linnaeus in 1758.
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You’ll find this butterfly across the eastern half of North America. The species once included butterflies in Eastern Canada, too. But Eastern Tiger Swallowtails living in Canada were given their own species designation in 1991: ‘Papilio glaucus canadensis.’
An adult female may lay two or three broods of eggs over the summer. Host plants include wild black cherry, sweetbay Magnolia, tulip poplar, cottonwood, common lilac and willow. You may notice that these are all common trees or shrubs.
You can easily spot the females by the beautiful blue markings on their wings. Females may have mostly yellow wings or mostly black wings; but they always have blue markings on their hindwings .
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A male Eastern Tiger Swallowtail feeds on Lantana at the Williamsburg Botanical Garden in mid-July.
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Males have yellow wings with the distinctive black striping that earns them the name, ‘Tiger Swallowtail.’
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Eastern Tiger Swallowtail butterflies remain fairly solitary, and are often found high up in the canopy of host trees. They live mostly on nectar, though they may be seen ‘puddling’ on damp ground to drink water.
These are common butterflies that have adapted to a wide range of habitats, nectar sources and host plants. They aren’t officially considered endangered, though shrinking habitats and use of insecticides has certainly affected their populations, too.
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The quickest, easiest way to attract swallowtail butterflies to your garden is to plant Lantana. Butterflies love Lantana, though its not a native plant in our area. They don’t care. It must have lots of sweet nectar, because it is common to see several species of butterfly gathering around the Lantana in our garden.
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You’ll see swallowtail butterflies on other flowering plants, too. They especially enjoy clusters of many small flowers, where they can stand and drink at their leisure. Purple coneflowers, Rudbeckias, Monarda, Verbena, dill and fennel flowers also attract their attention.
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If you love watching butterflies, you’ll love the Butterfly Festival at the Williamsburg Botanical Garden this weekend. Come into the tents and enjoy hand-feeding these lovely creatures and observing them up close. There will be several species of butterfly on display, including Monarchs, several different swallowtails and painted ladies.
There is no charge to enjoy the garden or the butterflies, and there will be lots of fellow butterfly enthusiasts on hand to share the excitement. Butterfly host and nectar plants will be available for sale, and there are crafts for the little ones.
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Native butterflies are an important part of our history and our heritage. As we watch them float around the garden, we are simply the latest generation in an unbroken chain of naturalists, smitten by their beauty.
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Woodland Gnome 2018
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“Butterflies are nature’s tragic heroes.
They live most of their lives being completely ordinary.
And then, one day, the unexpected happens.
They burst from their cocoons in a blaze of colors
and become utterly extraordinary.
It is the shortest phase of their lives,
but it holds the greatest importance.
It shows us how empowering change can be.”
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Kelseyleigh Reber
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The Devil’s Walkingstick, Aralia spinosa provides nectar when in bloom, and thousands of tasty berries in the autumn. It also supports 7 larval species. Here, an Eastern Tiger Swallowtail enjoys its nectar. 2017