This species has clusters of blue-purple flowers over bluish-green grass-like foliage. Each flower opens up only for one day.
A great addition to the border or naturalized garden, this one tolerates drought. Grows best in moist to wet soils in part shade to full sun.
For more information on this plant, visit the USDA PLANTS Database: http://plants.usda.gov/java/profile?symbol=TROH