Eastern Tiger Swallowtail females also have a dark form, easily
recognized by the veining on the wings. The yellow butterflies are
more easily noticed in the garden. We are just beginning to see these.
Black Cherry Prunus serotine trees are the host plants for Papilio glaucus, the Eastern Tiger Swallowtail Butterfly, our State Butterfly. Below is a short list of other local host plants for butterflies growing in my area of Georgia.
Some butterflies, like Zebra Swallowtails, only use a specific plant. Buckeyes and American Painted ladies use a number of different plants depending on availability. I've seen Buckeye larvae on Toadflax, on Agalinis in the fall, on Snapdragons in the spring.
Wild Cherries act not only as host plants but shelter. At the end of the previous warm season, pupae sensing the coming cold may not emerge. They remain until the end of winter, emerging when Azaleas bloom. I guess everything is triggered by day length and warming trends.
We can rest right here to wait for butterflies.