Crinum americanum Swamp lily S wamp lily is an emersed plant that grows in wetlands and along streams. It is a fragrant native. T he swamp lily is a perennial herb with an onionlike bulb . The leaves are erect to spreading.
Leaves are straplike, to three feet long.
The leaves are to three inches wide. Swamp lily flowers arise from the bulb on a long flower stalk that is separate from the leaves. The flowers have six petals and are white or white and pink. Long Dark green stalks with outstanding large, white flowers which bloom in spring and summer.