How to Water Santa Barbara ceanothus?
Deep occasional watering, mature shrubs withstand prolonged dryness

Santa Barbara ceanothus · Ceanothus impressus
Grow in fertile, well-drained soil in full sun with shelter from strong, cold winds. Lime tolerant but may become chlorotic on shallow chalk soils. See ceanothus cultivation
Deep occasional watering, mature shrubs withstand prolonged dryness