Scientific name: Sisyrinchium 

Blue-eyed grass is not a true grass. It has delicate little flowers, short stature, stays green for much of the year, clumping. Seems to be popping in places I didn’t put it, which is great because it’s one of my favorites. When the flowers go away it looks like grass, and doesn’t get much taller than 7 inches in full sun, loam/clay soils.