Photo courtesy of North Creek Nurseries

Iris versicolor (Northern Blue Flag)

This perennial features blooms of bright indigo standards and falls on tall slender stalks with narrow, sword-shaped green leaves. Moderate growth rate.

Blooms late spring to early summer
2-3 ft tall x 1.5-2 ft spread
HARDY to -40°F (-40°C)
Attracts bees, butterflies, and hummingbirds
Deer and rabbit resistant
Tolerant to juglone
Drought tolerant
Salt tolerant


Zone Zone 3
Exposure Full Sun to Partial Shade
Moisture Moderate to Consistent Moisture
Native to Native