The species in this genus arose as a result of an evolutionary arms race with different butterfly species who drove the milkweeds to develop increasingly toxic poisons in their milky sap to fend off the butterfly's ravenous caterpillars. So leave the chewing to the Monarchs! This species has upright branching stems with oblong leaves topped with dense clusters of small rose pink and white vanilla-scented flowers which attract butterflies. Good in moist, wet and average soils. Deer resistant.
Edges of ponds and moist soils, wet meadows, shallow waters. Banks and flood plains of lakes, ponds, and marshes. Ditch edges, dikes, swamps, wet prairies, and poorly drained spots.