Asclepias incarnataDeciduous flowering perennial with showy 3" lavender pink flower clusters on 2'-3' stems in spring that are extremely attractive to butterflies. Grows in wet situations from the Carolinas north. Plant in full sun. Give good drainage and average soil. Prefers moist soils. Cut back to 3" in late fall after dormancy. USDA zones 3-7 in cold hardiness.