Provide ample moisture since shallow roots are subject to drying and therefore plant death. The lustrous leaves usually lay flat against the ground. The upright flower stalks produce blue, white, or purplish flowers from early May to mid- June. The green, grasslike foliage makes an excellent dense mass for summer and fall. In winter, the foliage turns to a lighter green.
Divisions quickly grow together to form a dense mat.
The long, narrow leaves provide good texture as well as a turflike quality. It may suffer from hardiness problems in exposed areas. In zone 5, be sure to avoid Limuscari, Big Blue Lily-turf, due to its lack of winter hardiness. It is difficult to establish by seeds, so plant by underground stems. Use in naturalized areas where its invasiveness is not a problem.