Sisyrinchium idahoense - Idaho Blue Eyed Grass

Description Idaho blue-eyed grass is not a grass, but a member of the iris family. Small clumps of narrow pale green grass-like leaves are topped with dainty bluish-purple flowers with yellow centers in late spring. 
Plant Type Perennial.
Flower Color Bluish-purple, with a yellow center.
Bloom Period April-June.
Height at Maturity 6-18"
Plant Spacing 6-12"
Light Requirements Sun to part shade.
Moisture Needs Seasonally moist to wet.
Soil Type

 Moist, well-drained.