Dichelostemna congestum, commonly known as the Forktooth Ookow, is a native of the west coast of the USA. This plant produces a dense cluster of bluish-purple to pink flowers at the tip of long stems that wave in the breeze. Growing in open moist meadows from sea level up to 3,000-foot elevations, this plant needs to be grown in full sun in Chicago area gardens in soils that dry after flowering.