Perennial Herb: Need a true blue? This is it! Tolerates drought, deer & gophers. Nice border and container plant. Attracts butterflies and hummingbirds. Bloom time: summer-fall. Bloom color: azure blue. Height: 1.5-2.5 feet. Width: 2 feet. Exposure: sun. Water: moderate. USDA Z8. Mulch in harsher climates to provide protection.