Hybrid of Ceanothus foliosus and Ceanothus griseus. Centennial is a low-growing ceanothus with deep cobalt-blue flowers are concentrated in clusters which, when viewed against the glistening green surface of the leaves the flowers sparkle like water. An evergreen sub-shrub, Ceanothus 'Centennial' reaches to 1' tall to 5' wide. The deep blue flowers occur in late spring to early summer, attracting pollinators such as bees. A tough low maintenance groundcover it is well suited to small gardens, median strips, and slopes. This plant thrives in the dry shade or the understory of oak trees.

Plant in full sun if coastal, and part shade inland. If you live in the hills or mountains you'll be glad to know that the deer do not like this plant. Follow a regular watering schedule during the first growing season to establish a deep, extensive root system. Centennial Ceanothus is drought tolerant and frost hardy to 15-2 degrees F.

Ceanothus 'Centennial' is a hybrid of C. foliosus x C. griseus introduced by Roger Raiche of U.C. Botanic Garden in 199. Grows best in sandy, coarse-grained or other fast draining soil. Prefers sun or part shade in coastal sites, and part shade in inland sites. Naturally occuring hybrid (C. foliosus x C. thyrsiflorus var. griseus) collected at salt point (sonoma Co) in 1985 and introduced by Roger Raiche in 1992.