USDA Hardiness Zones
3 - 9
June - August
Clusters of light pink or lavender flowers followed by warty seedpods filled with seeds attached to long white hairs.
Full sun; moist, well drained soils to dry soils.
Found in fields and along roadsides. Monarch butterfly larvae feed on the foliage of this plant and absorb chemicals that make them toxic to predators. This plant can grow very aggressively.