Blue Flag, Iris Seed
Blue Flag Iris Seed
- Blue-violet flowers rise above sword-shaped foliage
- Native perennial for bog gardens and pond margins
- Thrives in consistently moist soil and full sun
- Spreading rhizomes form attractive colonies
Key Attributes
About Blue Flag, Iris Seed
Blue Flag Iris (Iris versicolor) is a moisture-loving native perennial with blue-violet flowers and upright, sword-shaped foliage. It grows well in bog gardens, rain gardens, and along pond margins in full sun. The flowers support pollinators, while the spreading rhizomes form attractive colonies in consistently moist soil. Mature plants generally reach about 30 to 36 inches tall.
Growing details
Plant profile
Seed & variety
Before Planting
Planting
Watering
Fertilizer
Harvesting
Tips
Pests & Diseases
Iris leaf spot, bacterial soft rot, and rhizome rot are the main concerns. Remove spotted foliage, sanitize tools, provide airflow, and prevent mulch or standing water from smothering the crown.
Iris borers, slugs, snails, and aphids may damage leaves or rhizomes. Inspect the base of plants regularly, remove damaged tissue promptly, and use targeted controls when needed.
Native States & Regions
- Connecticut
- Delaware
- Idaho
- Illinois
- Maine
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Nebraska
- New Hampshire
- New Jersey
- New York
- Ohio
- Pennsylvania
- Rhode Island
- Vermont
- Virginia
- West Virginia
- Wisconsin
Native regions: Great Lakes, New England, Northeast, Mid-Atlantic
Blue Flag Iris Native Range Map
Native range describes natural occurrence, not the origin of this seed lot or every location where a plant can be grown.
Alaska and Hawaii are shown as insets. State-level range does not mean a plant occurs throughout every part of that state.
Urban Farmer
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