Zones 3-9. One of the best ground covers for sun or shade. Non-invasive type and deer resistant! Helps control erosion. Crinkled reddish-bronze and purple leaves in spring followed by blue flowers on 3-4 inch stems in late spring to early summer. Mature leaves develop an interesting metallic sheen. Prefers moist, well drained soil. Do not let dry out completely. Use in rock garden, as ground cover for spring bulb foliage, in containers, under shrubs and trees or as edging.