Sisyrinchium 'E.K. Balls'
Common name(s): blue-eyed grass
Description: perennial; a sterile hybrid cultivar that originated in the U.K. Particularly narrow leaf blades and purple-blue flowers in late spring and throughout the summer.
Height: to 6 in. Spread: to 10 in.
Position: full sun and well-draining soil
Uses: ornamental- in rock gardens, containers or the front of a border
Winter Hardiness: to 10 F and below