A large perennial wildflower, Eupatorium perfoliatum is closely related to the Joe-Pye-weeds, and will occasionally grow up to 6 feet, but is typically around 4 feet tall. With pure white flowers that stand out in the late summer/early fall. The highly textured, lance-shaped leaves clasp the stem, and were once believed to facilitate the setting and healing of bones. Host plant for the Spring Azure butterfly, the Boneset Borer, and Three-lined flower moth.
Boneset prefers soil rich soil that remains consistently moist. It will tolerate some shade but does best in full sun. Uses include native pollinator gardens, wetland areas such as ponds, stream, marshes, and rain gardens.