This cormous perennial has long grass-like foliage that soon withers in spring and forms a clump. From spring to early summer it produces lilac blue tubular-shaped flowers in a small cluster above the foliage on a slender stem.

Hardiness zones 5 to 9 

Dichelostemma congestum is naturally found in North America from the San Francisco Bay area to the Cascade Range extending north through Oregon and Washington to British Columbia. It grows in open woodlands and coastal grasslands from sea level to an altitude of 2000 m (6,200ft). 

It prefers a well drained moderately fertile humus rich moist soil and grows in an open sunny, wind protected position and is  frost and drought tolerant. 

The Fork-toothed ookow is grown for its flowers and is planted in perennial borders or in a woodland setting and may be used as a container plant. It is suitable for coastal and low-mountain regions establishing in 2-3 years and is moderately long-lived. It is also used as a cut flower and can be planted in drifts or in a rockery. ID 3646 

Dichelostemma (dy-KEL-oh-STEM-ah)   congestum (kon-JES-tum)

Alliaceae  (AH-lee- AY-see-ee)
Onion family