Don't confuse this native with the non-native tropical or scarlet milkweed (Asclepias curassavica), that is often sold in big box stores, which has re , Tolerance, Not salt tolerant of inundation by salty or brackish water. Low/no tolerance of salty wind or direct salt spray , Considertions, Toxic. , Wildlife, Larval host plant for monarch (Danaus plexippus) and queen (Danaus gilippus) butterflies; possible larval host of soldier (Danaus eresimus) butterflie , Habitat, Wet flatwoods, savannas, marshes, swamps , Did You Know?, Showy flowers Larval host plant for monarch (Danaus plexippus) and queen (Danaus gilippus) butterflies; possible larval host of soldier (Danaus eresi