Blue Flag Iris
Iris versicolor
Family: Iridaceae
Blue Flag Iris grows in full sun to partial shade and prefers moist to wet acidic soil. Water needs: High.
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Plant reference images showing growth stages and identifying features.
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How to Grow Blue Flag Iris
Blue Flag Iris growing information includes sunlight requirements of Full sun to partial shade, soil conditions listed as Moist to wet acidic soil with a soil pH of 5.0-6.5, and High water needs. The listed hardiness zones are 3-9. For propagation reference, the database lists germination or establishment information for Blue Flag Iris as 30-90 days after stratification, with planting or establishment depth listed as 1/4 inch. Days to maturity are listed as 1-2 years.
Plant Overview
Blue Flag Iris (Iris versicolor) is listed in the Iridaceae family and categorized as a flower with a perennial life cycle. This profile summarizes growing information for hardiness, light, soil, water, seed starting, maturity, and other available cultivation details. Difficulty is listed as Moderate.
- Plant ID
- PLT-0340
- Family
- Iridaceae
- Plant type
- Flower
- Life cycle
- Perennial
- Difficulty
- Moderate
Growing Conditions
Blue Flag Iris is listed for full sun to partial shade conditions. Water needs are listed as high. The database soil reference is Moist to wet acidic soil. The listed soil pH range is 5.0-6.5, and the listed hardiness range is 3-9.
- Hardiness zones
- 3-9
- Sunlight
- Full sun to partial shade
- Soil
- Moist to wet acidic soil
- Soil pH
- 5.0-6.5
- Water needs
- High
Seed & Germination
For seed starting, the listed germination time is 30-90 days after stratification and the seed depth is 1/4 inch. The listed time to maturity is 1-2 years. Use these values as general reference points and adjust for local climate, seed source, and growing conditions.
- Germination
- 30-90 days after stratification
- Seed depth
- 1/4 inch
Harvest & Propagation
- Days to maturity
- 1-2 years
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Growing Reference Note
Plant performance can vary with climate, soil, weather, cultivar, seed quality, and gardening methods. The values on this page are general database reference ranges rather than a substitute for local extension guidance or seed-packet instructions.