(Asclepias incarnata) It is typically found growing wild near the edges of ponds, lakes, streams, and low areas. The plants have specialized roots for living in heavy wet soils. The thick, white roots are adapted to live in environments low in oxygen. Sweetly scented clusters of rose-pink flowers bloom in summer. Butterflies find the faint vanilla fragrance irresistible and monarch larvae feed on the foliage After blooming, long, rounded, pods are produced that grow uprightly. The pods split open in late summer to late fall, releasing seeds that are attached to silky hairs, which act as parachutes that carry the seeds on the currents of the wind. Marsh Milkweed seeds germinate without pretreatment.