Iris prismatica, Blue iris, is similar to Iris versicolor except for the narrower leaves.   This hardy lakeshore perennial herb is typically found in shallow waters of pond edges,  sedge meadows, marshes, along stream banks and in forested moist soil wetlands. Blue Iris forms narrow sword-like foliage less than 1/2" wide and grows to 1-2' tall from thick creeping rhizomes. The elegant flowers of Blue Iris are 2-4" across and light to deep blue. Blooms from May to July. 

Bloom Color