Iris versicolor
Blue Flag
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Blue Flag (Iris versicolor) - Description
Iris versicolor, also commonly known as the Blue flag, Harlequin Blueflag, Larger Blue Flag, Northern Blue Flag, and other variations of those names, is a species of Iris native to North America where it is common in sedge meadows, marshes, and along streambanks and shores. The flower get its name Versicolor from the Greek word Rainbow, in allusion to the prismatic colors of the species.
Blue Flag (Iris versicolor) - Blooming
All bear flowers with 6 petals. Three, called standards, point up or out. And three, called falls, point out or down. Generally flowers are borne in small clusters and buds open in succession along the stalk.
Blue Flag (Iris versicolor) - Growth
A vast genus or both perennials and bulbs, 300 species and thousands of cultivars. Foliage is sword shaped, strap shaped, or grassy. Some rhizomatous species spread widely, other form clumps.
Blue Flag (Iris versicolor) - Planting
Varies by type. Beware of planting rhizomes too deeply or covered with too much mulch, as they may rot. Plant bearded irises from mid-summer to early fall.
Blue Flag (Iris versicolor) - Pest
The most serious problem is bacterial soft rot, which you will recognize from mushy, foul-smelling rhizomes. To prevent, do not use manure or excess nitrogen, especially with poor drainage. If soft rot occurs, dig up and destroy the effected portions of rhizome
Blue Flag (Iris versicolor) - Interesting facts
Iris, the Greek goddess of the rainbow, gives her name to these flowers. History records their cultivation as far back as 1500 BC in Egypt.
Blue Flag (Iris versicolor) - Soil and irrigation
Bearded irises prefer average to rich, well-drained soil. Whereas bog irises need permanently damp soil or even to be placed at a pond margin.
