California Botanic Garden (formerly Rancho Santa Ana Botanic Garden)

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United States of America - California - Claremont

Institution Code: RSA

BGCI Member: Yes

About the California Botanic Garden (formerly Rancho Santa Ana Botanic Garden)

Rancho Santa Ana Botanic Garden was founded to promote botanical knowledge, conservation, and landscape use of California's native plants.

As a private, non-profit, research and educational institution, with extensive library, herbarium, and laboratory facilities, the Garden is responsible for the Botany Program of the Claremont Graduate University. Active research in systematic and evolutionary botany, as well as the Garden's horticulture and community education programs, focus on native California plants and their conservation.

The garden is located on the same property as the Grow Native Nursery, which sells California native plants.

The mission of the Garden is to make significant contributions to the appreciation, enjoyment, conservation, understanding, thoughtful utilization and stewardship of our natural heritage.

Main Address:
California Botanic Garden (formerly Rancho Santa Ana Botanic Garden)
1500 North College Avenue
California 91711 United States of America

Telephone: (909) 625-8767
Fax: (909) 626-7670
Primary Email:

Staff Details

  • Director's Name: Lucinda McDade, Executive Director
    Curator's Name: Peter Evans, Director of Horticulture
    Plant Records Officer's Name: James Reed, Plant Records Manager

About the Garden

  • Institution Type: Botanic Garden
  • Status
  • Status: Private: Yes
    Status: Educational: Yes
  • Date founded: 1927
  • Physical Data
  • Natural Vegetation Area: Yes
  • Total Area: 34 Hectares
    Latitude: 34.1093056
    Longitude: -117.7149178
    Annual Rainfall: 485 mm
    Altitude: 396.00 Metres
  • Locality: Information
  • Locality: Garden Name:
  • Local Address: Rancho Santa Ana Botanic Garden is located at an elevation of 1,350 feet on the outwash plain of the San Gabriel Mountains in Claremont, California. The 86-acre Botanic Garden is laid out in three distinct areas: Indian Hill Mesa (heavily planted with mature cultivars and wild species of California native plants), East Alluvial Gardens (includes the Desert Garden, the Coastal Dune and California Channel Island collections), and the Plant Communities(displays, in naturalistic plant associations, include the largest cultivated examples of Big Berry Manzanita and numerous plantings of the rare and endangered Crucifixion Thorn).
  • Locality: City:
  • Locality: State:

Features and Facilities

  • Herbarium: Yes
    Herbarium: Number of Specimens: 1000000
  • Seed Bank: Yes
    Computer Plant Record System: Yes
  • Open to public: Yes
    Friends society: Yes
    Retail Outlet: Shop: Yes
    Retail Outlet: Plant Sales: Yes
    Disabled access: Yes
  • Number of Visitors: 92000
    Number of Volunteers: 200

Plant Collections

  • Accession Number: 2058
    Cultivation Taxa Num: 1123
  • Special Collections:Arctostaphylos (86 taxa), Ceanothus (78 taxa). Plantings devoted exclusively to California native plants, including northern Baja California.

    Seed Bank containing over 4,000 accessions representing 2,100 taxa from the state of California and northern Baja California in Mexico. Seed bank collections of rare, threatened, and endangered California plant species, many collections representing the only remaining genetic material from currently extirpated populations.

Conservation Programmes

  • Conservation Programme: Yes
    Ex Situ Conservation Programme: Yes
    Reintroduction Programme: Yes

Research Programmes

  • Conservation - Biology: Yes
    Conservation - Genetics: Yes
    Floristics: Yes
    Molecular Genetics: Yes
    Pollination Biology: Yes
    Seed/Spore Biology: Yes
    Urban Environments: Yes

Education Programmes

  • Visitor/Education Centre: Yes
    Education Signs in Garden: Yes
    Public Lectures/Talks: Yes
    Education Booklets/Leaflets: Yes
    Guided Tours: Yes
    Permanent Public Displays: Yes
    Special Exhibitions: Yes
    Courses for School Children: Yes
    Courses for University/College Students: Yes
    Courses for General Public: Yes
    Education Programme: Yes