slender blue iris
Iris prismatica
USDA zones3 to 9
SunHandles full sun to partial shade
WaterHandles moderate to moist soil
Size1 to 3 feet tall1 to 3 feet wide
- Habit
- Herb
- Bloom season
- Spring, summer
- Bloom color
- Blue
- Soil types
- Loam, clay
- Soil pH
- Acid, neutral
Garden uses
Attracts
Notes
Slender blue iris (Iris prismatica) is a perennial for meadows and low maintenance gardens. It is hardy to USDA zone 3, or down to -40°F (-40°C). This plant likes full sun to part shade and average to moist, loamy or clay soil. Thin, grass-like leaves rise from a basal cluster, and pale blue to violet blooms open on branched stems. Deer usually look elsewhere for a meal. It also tolerates salt.
Pairs well with Switchgrass, Royal fern, and Siebold's hosta.
Native range
CT, DE, GA, MA, and 12 more places. See all 16
CT, DE, GA, MA, MD, ME, NC, NH, NJ, NY, PA, RI, SC, TN, VA, and VT; NS.