Blue Flag
Iris Versicolor
Overview
Iris versicolor, or Blue Flag, is a striking perennial native to North America. Grows to 2–3 feet tall with lance-shaped leaves. It produces vibrant blue to purple flowers in late spring, each with six petal-like parts. Prefers full to partial sun and wet conditions, thriving in zones 3-9. Ideal for rain gardens and waterside plantings. Provides habitat support and attracts pollinators, offering both ecological and aesthetic benefits.
Sun HalfWater Extra in Summer, MediumZones 8–10Type PerennialClimate Mediterranean
Culture
- Sun
- Half
- Water
- Extra in Summer, Medium
- USDA zones
- 8–10
Shape & size
- Mature height
- 2–3 Ft.
- Mature width
- 2–3 Ft.
Classification
- Type
- Perennial
- Family
- Iridaceae
- Climate
- Mediterranean
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Photographs by 13 contributors
- Dlanglois, CC BY-SA 3.0 · source
- Ryan Hodnett, CC BY-SA 4.0 · source
- Evelyn Simak, CC BY-SA 2.0 · source
- gailhampshire from Cradley, Malvern, U.K, CC BY 2.0 · source
- Ayotte, Gilles, 1948-, CC BY-SA 4.0 · source
- Nichole Ouellette, CC BY-SA 4.0 · source
- Susan Blayney, CC BY 4.0 · source
- Cliff from Arlington, Virginia, USA, CC BY 2.0 · source
- Nichole Ouellette/ouellette001.com, CC BY-SA 4.0 · source
- James Steakley, CC BY-SA 4.0 · source
- David J. Stang, CC BY-SA 4.0 · source
- Rob Routledge, Sault College, Bugwood.org, CC BY 3.0 · source
- Fungus Guy, CC BY-SA 3.0 · source
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