AW Southern Blue Flag Iris Virginica Shreve 20 Seeds Fast Shipping US 

Iris virginica var. shrevei, Southern Blue Flag Iris, usually grows in large patches that expand outward from rhizomes. It is 2’-3’ high with the leaves on the flower stem growing slightly taller than the flower. Bloom time is from late spring to early summer. The bloom color is somewhat variable, but is most often a medium to pale blue violet. There is a yellow blotch on the lower sepal where it joins a small upper lip; a mark that helps to distinguish the flower from those of Iris versicolor, Northern Blue Flag Iris

Then, follow the GERMINATION INSTRUCTIONS 
prior to planting. Some species don't need any pre-treatment to germinate, but some species have dormancy mechanisms that must be broken before the seed will germinate. Some dormancy can be broken in a few minutes, but some species take months or even years.

Seed dormancy can be broken artificially by prolonged refrigeration of damp seed in the process of cold/moist STRATIFICATION. A less complicated approach is to let nature handle the stratifying through a dormant seeding, sowing seeds on the surface of a weed-free site in late fall or winter. Tucked safely beneath the snow, seeds will be conditioned by weathering to make germination possible in subsequent growing seasons.