Rocky Mountain iris

Iris missouriensis

Native perennial evergreen forb spreading by tuberous rhizomes with showy large pale blue to blue-violet flowers and dark violet veins, blooming May to September. Occurs in wetlands and riparian areas of streambanks, moist meadows and forest openings; up to 11,500 ft. elevation. Use for restoration or in wet to saturated landscaping. Attracts insects and hummingbirds.