Rocky Mountain Iris
Iris missouriensis
The wild blue flag of western mountain meadows, opening pale lavender-blue flowers veined in violet where snowmelt lingers. Spreads into colonies in seasonally wet ground.
- Family
- Iridaceae
- Type
- wildflower
- Lifespan
- perennial
- Height
- 1–2 ft
- Spacing
- 0.75–1 ft apart
- Light
- sun
- Soil moisture
- moist, wet
- Soil pH
- neutral, alkaline
- Bloom
- May, June
- Bloom colors
- purple
- Wildlife value
- pollinators
- Landscape uses
- border, container, rain garden, erosion control, naturalizing
- Native states
- AZ, CA, CO, ID, MT, NE, NM, NV, OR, SD, UT, WA, WY
Related native plants
More Iris species
- Dwarf Crested Iris (Iris cristata)
- Douglas Iris (Iris douglasiana)
- Northern Blue Flag Iris (Iris versicolor)
- Virginia Iris (Iris virginica)
- Oregon Iris (Iris tenax)
- Copper Iris (Iris fulva)