Iris missouriensis | Rocky Mountain Iris

Rocky Mountain Iris is native to the U.S. It does best in improved soil that is kept moist during the growing season. Plantings naturally spread via its rhizomes, so they require division on a regular basis. Rhizomes are poisonous. Canopy coverage: 3 square feet.

Water Requirement: low, moderate

Sun Exposure: full sun

Cold Hardiness: cold hardy to -30F

Growth Rate: moderate

Height: 2 feet high

Width: 2 feet wide


Foliage Color: blue-green

Flower Color: white, lavender

Flower Season: spring, summer