Perennial Herb: Rare! Evergreen. Drought, deer, gopher & fire tolerant. Good for borders, poolsides, pots & as a cut flower. Has VERY large clusters (about the size of a volleyball) of dark blue blooms on tall stalks. Blooms: summer-fall. Clump forming. Ht: around 6-8'. Exposure: sun/part shade. Water water well during growing season. USDA Z9.