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Ceanothus hearstiorum

Ceanothus hearstiorum Hoover & J.B. Roof

Hearst Ranch Buckbrush

Rhamnaceae (Buckthorn Family)


USDA Symbol: CEHE2

USDA Native Status: L48 (N)

A low, compact shrub only 6 in. to 1 ft. tall with a spread of 3-5 ft. The small, shiny leaves of this tidy ground cover are dark green. Flower clusters are made up of small, dark blue blossoms.


From the Image Gallery

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Plant Characteristics

Duration: Perennial
Habit: Shrub
Leaf Retention: Evergreen
Leaf Complexity: Simple
Fruit Type: Capsule
Size Notes: Up to about 1 foot tall.

Bloom Information

Bloom Color: Blue
Bloom Time: May , Jun


Native Distribution: San Luis Obispo Co., CA
Native Habitat: Coastal chaparral

Growing Conditions

Light Requirement: Part Shade
Soil Description: Alkaline, adobe soil.
Conditions Comments: This plant does not do well in beach sand.

Value to Beneficial Insects

Special Value to Native Bees
Supports Conservation Biological Control

This information was provided by the Pollinator Program at The Xerces Society for Invertebrate Conservation.


Description: Layering may be the easiest method of propagation with this species.
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.
Seed Treatment: Seed dormancy may be broken with hot water treatments and cold-moist stratification.
Commercially Avail: yes

From the National Organizations Directory

According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:

Santa Barbara Botanic Garden - Santa Barbara, CA

Web Reference

Webref 38 - Flora of North America (2019) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Ceanothus hearstiorum in USDA Plants
FNA: Find Ceanothus hearstiorum in the Flora of North America (if available)
Google: Search Google for Ceanothus hearstiorum


Record Modified: 2023-01-31
Research By: TWC Staff

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