American Wisteria is a woody vine featuring fragrant, lilac-purple flowers, which bloom June-August. Full sun is needed for optimum flowering. The flowers provide an attractive nectar source for native bees. American Wisteria is a host plant for butterfly and moth larvae (caterpillars), including Marine Blue (Leptotes marina) and Zarucco Duskywing (Erynnis zarucco). It requires regular pruning to maintain control; however, it is not as aggressive as the non-native, invasive Wisteria species. American Wisteria is an excellent alternative to Chinese Wisteria (Wisteria sinensis) and Japanese Wisteria (Wisteria floribunda), both invasive. Train American Wisteria to grow on your trellis, arbor, climbing wall, or around fences in your yard.