Wild irises, also called blue flags, are a member of the Iridaceae family. They have sword-shaped leaves and violet-blue flowers with bold markings. They are unlike many flowers in that they have no scent, according to the Alaska Department of Natural Resources.
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Wild iris seeds need planting soon after harvesting for the best germination. Bury seeds approximately ¼ to ½ inch deep when the soil is just beginning to freeze in September. When planted indoors and kept at a consistent 22.8 degrees C in March, they will germinate faster.
Germination of wild irises takes approximately one to two weeks longer than other flowers. When planted outside in September, the seeds will not germinate until the next spring. If planted indoors in a controlled environment, they will germinate within two to three weeks, according to Shirley Froehlich of Prairie Originals.
It takes about two years for a wild iris to go from seed to a blooming plant. The plants bloom during June and July and produce three to four blossoms per stalk each year. Each bloom contains seed pods with little brown seeds that are ready for harvesting.
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