Teucrium fruticans 'Azureum'Evergreen flowering shrub to 4' tall and a bit wider with powdery gray foliage and clear, bright blue 1" flowers spring through fall. A heavy bloomer, it is a favorite of bees. Plant in full sun. Give good drainage and average water. Drought tolerant once established. Can be cut back to keep as a smaller specimen. USDA zones 7b-10 in cold hardiness.