Ceanothus

The hardiest and largest of the California lilacs - a fast-growing broadleaf-evergreen shrub of the Pacific coast that smothers itself in dense thyrse clusters of pale-to-deep blue flowers in spring. Glossy three-veined, finely toothed dark-green leaves and a billowing shrub habit make it a signature blue mass on West Coast slopes. Drought tolerant once established, it asks for little summer water and resents overwatering; deer and elk browse the foliage and the bloom is a documented draw for native bees.

A native eastern + central North American deciduous shrub with frothy white flower clusters in early summer + nitrogen-fixing root nodules (one of few non-legume nitrogen-fixers). Compact + drought-tolerant; tea was brewed from the leaves during the American Revolution as a colonial-era substitute for British tea.