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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.

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. USDA, NRCS. 2012. The PLANTS Database (http://plants.usda.gov, 8 October 2012). National Plant Data Team, Greensboro, NC 27401-4901 USA.

Iris virginica

Southern blue flag

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.


Height:

1-3 ft

Spread:

1-3 ft

USDA Hardiness Zone:

2-7

Bloom Color:

Blue

Iris virginica Characteristics

Exposure

  • Full Sun to Partial Shade

Critter Resistance

  • Deer Resistant

Soil Moisture Preference

  • Wet to Moist

Attributes

  • Bog
  • Naturalizing

Flowering Months

  • June
  • May

Foliage Color

  • Green

Interesting Notes:

For more information on this plant, visit the USDA PLANTS Database: http://plants.usda.gov/java/profile?symbol=IRVI