Zebra swallowtail caterpillars mainly feed on pawpaw trees. Spicebush swallowtails favor the spicebush and sassafras. Eastern tiger swallowtails go for several kinds of trees, including ash ...

This biennial herb offers a nutritious food source for caterpillars while its ... a perennial favorite for attracting swallowtail butterflies like the Spicebush Swallowtail. Its clusters of ...