Plant Profile

Indian Hemp Dogbane - (Apocynum cannabinum) is a bushy herbaceous perennial of the Apocynaceae (Dogbane) family native to most of the United States and Canada. Genus name comes from the classical Greek name for this or a related plant, while the specific epithet means like Cannabis or hemp. This plant typically grows in the wild in dry rocky or open woods, glades and prairies, as well as disturbed areas.

Indian hemp grows 2 to 4 feet tall and 1 to 2 feet wide and prefers sandy well-drained soil in full sun. It will spread aggressively by rhizomes, and may be propagated by seed or division. All parts of this plant exude a milky juice when bruised and all plant parts are considered highly toxic to humans. and mammals. 

The flowers appear late spring to late summer in clusters of small greenish-white flowers that attract many different pollinators. They are followed by seed pods that contain many silk tufted seeds. Native bees nest in the dead, hollow stems, so gardeners are encouraged to cut back dead stems to 12 to 24 inches and allow them to remain standing until they disintegrate on their own. 

It can grow aggressively and is good for erosion control on slopes and stream banks. It is not recommended for garden use due to its aggressive behavior. Use in naturalized areas where they can spread freely.