Black Flag Iris
Ferraria ferrariola
Family: Iridaceae
Black Flag Iris grows in full sun and prefers sandy sharply drained soil. Water needs: Low.
How to Grow Black Flag Iris
Black Flag Iris growing information includes sunlight requirements of Full sun, soil conditions listed as Sandy sharply drained soil with a soil pH of 6.0-7.5, and Low water needs. The listed hardiness zones are 9-11. For propagation reference, the database lists germination or establishment information for Black Flag Iris as 21-60 days, with planting or establishment depth listed as 1 inch. Days to maturity are listed as 2-3 years.
Plant Overview
Black Flag Iris (Ferraria ferrariola) is listed in the Iridaceae family and categorized as a corm 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 Difficult.
- Plant ID
- PLT-1527
- Family
- Iridaceae
- Plant type
- Corm
- Life cycle
- Perennial
- Difficulty
- Difficult
Growing Conditions
Black Flag Iris is listed for full sun conditions. Water needs are listed as low. The database soil reference is Sandy sharply drained soil. The listed soil pH range is 6.0-7.5, and the listed hardiness range is 9-11.
- Hardiness zones
- 9-11
- Sunlight
- Full sun
- Soil
- Sandy sharply drained soil
- Soil pH
- 6.0-7.5
- Water needs
- Low
Seed & Germination
For seed starting, the listed germination time is 21-60 days and the seed depth is 1 inch. The listed time to maturity is 2-3 years. Use these values as general reference points and adjust for local climate, seed source, and growing conditions.
- Germination
- 21-60 days
- Seed depth
- 1 inch
Harvest & Propagation
- Days to maturity
- 2-3 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.