Swamp or Rose Milkweed makes a beautiful, tall presence in the garden.  It likes moist soil but is adaptable to most garden soils.  Like all milkweeds, Swamp is an important food source for Monarch butterfly caterpillars, and the flowers are visited by various kinds of bees and other pollinators, including hummingbirds. 
 
     This easily grown perennial features tight clusters of small, fragrant, pink-to-mauve flowers that bloom in mid-spring and last until early fall, when the seed pods open and release seeds that float on the wind.
 
 
     Photos: Creative Commons; Video: Parker Anderson