Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.
Ceanothus impressus Trel.
Santa Barbara Ceanothus, Santa Barbara Buckbrush
Rhamnaceae (Buckthorn Family)
USDA Symbol: ceim
USDA Native Status: L48 (N)
An aromatic, densely branched, 6-10 ft. shrub. The evergreen leaves are small and dark-green, with curled margins. Deep-blue flowers occur in small, showy clusters.
From the Image Gallery
Plant CharacteristicsDuration: Perennial
Leaf Retention: Evergreen
Leaf Complexity: Simple
Fruit Type: Capsule
Size Notes: Up to about 10 feet tall.
Bloom InformationBloom Color: Blue
Bloom Time: Feb , Mar , Apr , May
Native Distribution: Santa Barbara Co. to San Luis Obispo Co., CA
Native Habitat: Dry slopes; chaparral
Growing ConditionsLight Requirement: Part Shade
Soil Moisture: Dry
Soil Description: Dry soils.
Conditions Comments: Prune flexible growth to control size; avoid cutting older, woody growth. Extremely drought-tolerant.
Value to Beneficial InsectsSpecial Value to Native Bees
Supports Conservation Biological Control
This information was provided by the Pollinator Program at The Xerces Society for Invertebrate Conservation.
PropagationDescription: Most Ceanothus spp. come well from seed. Cuttings of this species may also be successful.
Seed Collection: Because dry capsules disperse their seed abruptly with a sudden ejection, it may be necessary to tie cloth bags around the clusters of capsules to catch the seeds.
Commercially Avail: yes
Find Seed or Plants
Find seed sources for this species at the Native Seed Network.
From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Santa Barbara Botanic Garden - Santa Barbara, CA
Native Seed Network - Corvallis, OR
BibliographyBibref 995 - Native Landscaping from El Paso to L.A. (2000) Wasowski, S. and A. Wasowski
Search More Titles in Bibliography
Web ReferenceWebref 30 - Calflora (2018) Calflora
Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Additional resourcesUSDA: Find Ceanothus impressus in USDA Plants
FNA: Find Ceanothus impressus in the Flora of North America (if available)
Google: Search Google for Ceanothus impressus
MetadataRecord Modified: 2022-10-17
Research By: TWC Staff