Fennel is another wonderful plant that attracts the Black Swallowtail butterfly. This herb is similar to dill in that it serves as a nectar source for adults and a host plant for caterpillars.

Discover the top 10 swallowtail host plants and flowers to grow. Many swallowtails have colorful names that help with identification. For example, the tiger group is bright yellow with narrow ...

They’re the host plant for zebra swallowtail butterflies, meaning their larvae feed exclusively on pawpaw leaves. Pawpaw trees provide ornamental interest in early spring, when they produce small, ...