Asclepias sullivantii - Prairie Milkweed with lovely rounded domes of pink florets and paddle leaves looks superficially like Common Milkweed. Flowers are fragrant occurring late in June, July and August. Pinker than Common Milkweed which exhibits a dusty old-fashioned mauve color the florets of Asclepias sullivantii are brighter pink. Bold leaves tend to arc upward, are handsome green with a prominent central vein and are nearly hairless. Sullivant's Milkweed, another moniker, is less rambunctious than Common Milkweed, Asclepias syriaca. A fine candidate for the butterfly garden this long-lived perennial will also draw hummingbirds and bees. Modestly good to fertile ground in sun. It can hybridize with A. syriaca, the Common Milkweed. Once established it will not be an easy candidate for transplanting. Oklahoma north to Canada; Ontario south to Ohio, west to Illinois south to Arkansas. Established potted Praire Milkweed from seed.