|C. nana is diminutive, usually less than six inches in height and bears several petite star-shaped flowers per stem, in pale blue fading to white at the center. Small, self-seeding bulb suitable for rock gardens. Leaves are basal and strap shaped, 3 inches to 8 inches long and medium green. Delightful, star-shaped, blue flowers with white centers grow in clusters in early spring. Bulbs should be planted 3 inches deep in September or October in a slightly shady area. A wonderful bulb for naturalizing along woods' edge because they will self-sow over time.