Dry slopes of the western face of the Coast Ranges, Transverse Range and Peninsular Range, usually below 3,000 ft.
Sunset Zones ?
7, 8, 9, 14*, 15*, 16*, 17*, 18, 19*, 20*, 21*, 22*, 23*, 24*
Numerous insects, especially bees, are attracted to the flowers. Birds and small mammals are attracted to the fruits. Plants in the Ceanothus genus are host plants to the Spring Azure, Echo Blue, Pacuvius Duskywing, California Tortoiseshell, Pale Swallowtail, and Hedgerow Hairstreak butterflies.