Description

‘Centennial’ ceanothus is thought to be a natural hybrid between Ceanothus foliosus and Ceanothus thyrsiflorus var. griseus. It was grown from seed collected in Sonoma County, CA, by Roger Raiche in 1985. It grows to about a foot in height, spreading to six feet or more. The leaves a small and glossy. These are covered in spring with dark blue flowers that last several weeks. This is a great ceanothus for a shady site, perhaps receiving dappled sunlight or only a few hours of morning sun. While it thrives in full sun on the immediate coast, ‘Centennial’ actually requires some afternoon shade in inland areas. It appreciates well-draining soil and, as for all ceanothus, little or no supplemental irrigation once established. Blooms in early April in Santa Clara County.