This is a short, grassy leaved Iris species. It forms a low tuft of bright green, sword-shaped leaves. Loads of small three-petalled flowers appear in late spring, lavender-blue with silvery-white veining. Very cold tolerant. A good choice for edging or in the sunny rock garden. Easily divided in early autumn. CAUTION: Harmful if eaten. 
Height: 15-30cm (6-12”). Spread: 20-30cm (8-12”)