While this plant is an absolute must for attracting butterflies to the landscape, it is also a must for the beauty it adds to the garden. Upright growing with long, lance-like foliage, this Asclepias provides tall backing to any American Beauties garden while producing umbels of small, mauve-pink fragrant flowers from late June through July. Swamp Milkweed loves moist, sunny areas and is the signature plant for Monarch caterpillars and for nectar for Monarch adults as well as other showy landscape butterflies. Even the silky fiber left post bloom is valuable to nesting birds. Plant it in groups and watch the landscape come alive with critter color!