Santa Barbara Lilac
Ceanothus Impressus
Overview
The Santa Barbara Lilac, Ceanothus impressus, thrives in USDA zones 8-10. Prized for vibrant blue blossoms, it flourishes in full sun. Mature size reaches 6-9 ft height with an equal spread. This evergreen shrub requires minimal water once established, ideal for drought-tolerant landscapes. It provides contrast with its dark green, holly-like leaves, and promotes pollinator activity. Plant in well-draining soil for optimal growth.
Sun Full, HalfWater Low, Very LowZones 8–11Type ShrubClimate Mediterranean
Culture
- Sun
- Full, Half
- Water
- Low, Very Low
- USDA zones
- 8–11
Shape & size
- Mature height
- 4–6 Ft.
- Mature width
- 4–6 Ft.
Classification
- Type
- Shrub
- Family
- Rhamnaceae
- Climate
- Mediterranean
See full data, regional cultivation notes, and design tools. Build a client presentation around this plant.
Start your 14-day trialPhotos (14)














Photographs by 5 contributors
- Stan Shebs, CC BY-SA 3.0 · source
- User:Stan Shebs, CC BY-SA 3.0 · source
- John Rusk from Berkeley, CC BY 2.0 · source
- Chris Light, CC BY-SA 4.0 · source
- Theactivistuk, CC BY-SA 4.0 · source
Related plants

Shrub
Bitter Condalia Or B. Snakewood
Condalia Globosa
FullUSDA 8–11

Shrub
Blue Blossom
Ceanothus Thyrsiflorus
FullUSDA 7–10

Shrub
Blue Jeans California Lilac
Ceanothus 'Blue Jeans'
FullUSDA 7–10

Ground cover
Buck Brush
Ceanothus Cuneatus
FullUSDA 8–11

Ground cover
Buckbrush Ceanothus
Ceanothus Velutinus
FullUSDA 6–8

Shrub
California Coffeeberry
Frangula Californica
FullUSDA 8–10