Perennial Herb: Drought, deer & rabbit tolerant. A stunner with large spires of flowers that are almost iris-like and have a long bloom season! A vigorous grower. Mounded growth habit. Good cut flower, border, rock garden, low hedge & edging plant. Aromatic foliage. Attracts cats, butterflies, hummingbirds and bees. Blooms: spring-fall. Color: lavender blue. Ht: 28-36 in. Width: 36-48 in. Exp.: sun/part shade. Water: mod./dry. USDA Z5-9. USPP #31,901