|This perennial is rosette in form and has hairy, toothed, lance-shaped leaves. From late spring to early summer bears cup-shaped, light blue flowers. Best suited to zones 7-8 and well-drained, humus-rich soil that is neutral to slightly acid. Requires partial shade. Site should be protected from cold drafts. Mulch well. Ideal for the cool moist garden. Will not tolerate heat or drought.