Whodunit blue flag
Iris versicolor 'Whodunit'
USDA zones3 to 7
SunHandles full sun to partial sun
WaterHandles moderate to wet soil
Sizeup to 2.5 feet tall18 to 24 inches wide
- Habit
- Arching
- Bloom season
- Spring, summer
- Bloom color
- Violet standards with white falls
- Soil types
- Loam, clay
- Soil pH
- Acid, neutral
Garden uses
Notes
'Whodunit' blue flag (Iris versicolor 'Whodunit') is a perennial for borders, rain gardens, and naturalized areas. It is hardy to USDA zone 3, or down to -40°F (-40°C). This plant likes full or part sun and average to wet, loamy or clay soil. It bears violet standards with white falls in spring and again in summer. It sits low on the menu for deer. The arching clumps reach about 30 inches tall.
Pairs well with Pickerel weed, Royal fern, and Smooth aster.