Naturally found in marshes, flood plains, and edges of water bodies, Southern blue flag provides excellent soil stabilization. Photo credit:Robert H. Mohlenbrock @ USDA-NRCS PLANTS Database / USDA NRCS. 1995. Northeast wetland flora: Field office guide to plant species. Northeast National Technical Center, Chester.
Iris virginica is easy to grow and will do well in average garden soil, but does best in wetter conditions. Found naturally in marshes, floodplains, and edges of ponds, streams, and lakes. The plant has blue flowers with a yellow crest and flattened, pointed foliage. The roots provide excellent soil stabilization.
Native Americans used the roots of this plant for a variety of ailments ranging from skin issues to liver issues.
For more information on this plant, visit the USDA PLANTS Database: http://plants.usda.gov/java/profile?symbol=IRVI