Institutional Profile

Rancho Santa Ana Botanic Garden
1500 North College Avenue
Claremont, CA  91711-3157
Telephone:  (909) 625-8767; Fax:  (909) 626-7670

Rancho Santa Ana Botanic Garden (RSABG), the largest botanic garden dedicated exclusively to California’s native plants, grounds itself with a philosophy of biodiversity and the importance of bringing real-world conservation applications to the public through horticultural education, scientific research and sales of native plants. 

Garden Hours

Open daily 8 a.m. until 5 p.m.
Closed January 1, July 4, Thanksgiving, December 25 and for some scheduled special events.


Members: free
Adults: $9
Seniors (ages 65+): $6
Students (with ID): $6
Children (ages 3-12): $4
Children under 3: free

Basic membership

Family: $85 (two adults in household and their dependent children)
Individual: $50


Rancho Santa Ana Botanic Garden promotes botany, conservation and horticulture to inspire, inform and educate the public and the scientific community about California’s native flora. The Garden is devoted to the collection, cultivation, study and display of native California plants and to graduate training and research in plant systematics and evolution. Through all its programs, the Garden makes significant contributions to the appreciation, enjoyment, understanding and thoughtful utilization of our natural heritage.


Founded in 1927 by Susanna Bixby Bryant on approximately 200 acres of her 6,000-acre working ranch in Orange County. Moved to 86-acre Claremont location in 1951.

RSABG Executive Directors: Susanna Bixby Bryant (1927-46); Philip Munz (1946- 60); Lee Lenz (1960-83); Tom Elias (1983-93); H.C. Miller, Interim Director (1993-94); Roy Taylor (1994-99); Clem Hamilton (1999-2004); Patrick Larkin, Interim Executive Director (2004-05); Patrick Larkin (2005 - 2012); Lucinda McDade, Interim Executive Director (Nov. 2012 - May 2013); Lucinda McDade (2013 - current)

The Garden

Spread across 86 acres in Claremont, California, the Garden is located approximately 35 miles east of Los Angeles. Nestled in the foothills of the San Gabriel Mountains, the Garden offers beautiful mountain vistas. The Garden displays about 2,000 taxa of the approximately 6,000 native plant taxa in California and includes those native to the California Floristic Province as a whole. This region extends into southern Oregon, far-western Nevada and extensively into Baja California, Mexico. 


RSABG is committed to making its exhibitions, programs and services accessible to all. All buildings and most garden areas at RSABG are accessible to visitors with limited mobility. Due to the terrain, some areas may present challenges to those with ambulatory disabilities. Contact the Visitor Services Department for questions regarding accessibility.

Accreditation and Associations

RSABG is accredited by the American Alliance of Museums (formerly the American Association of Musuems), and is an institutional member of American Public Gardens Association; Association of Systematics Collections; Center for Plant Conservation; California Association of Nurserymen, California Garden Clubs, Inc.; Claremont Community Coordinating Council and Claremont Chamber of Commerce. RSABG was one of the first botanic gardens to be accredited by the American Association of Musuems. RSABG is an affiliate of The Claremont Colleges.


RSABG Departments

Development and Membership

Rancho Santa Ana Botanic Garden touches lives and makes an impression on vistors of all ages and participate in the Garden’s many programs. As a private, non-profit 501 (C) (3), RSABG relies on the charitable support of individuals, corporations and foundations.
Membership: 3,000 members
Total Donations (fiscal year 2011): $682,130


The Horticulture Department of RSABG is comprised of three distinct programs that contribute significantly to the organization’s mission—The Living Collection, Seed Conservation Program and Grow Native Nursery. The Seed Conversation Program preserves in freezers approximately 1,400 species and varieties; over 170 are rare and or endangered. Grow Native Nursery has two locations; one in Claremont and the second in Westwood, Los Angeles. 

Community Education

Since it's inception, RSABG has made it part of it's mission to educate the public about the plants and ecology of California. The Garden offers a wide range of workshops and coarses for all levels of native plant enthusiasm, from free classes for home gardeners to professional level workshops to continue the education of California botanists. We offer five hands-on, guided tours and programs designed for K-12 graders, aswell as guided tours and garden walks for all ages.

RSABG held 67 workshops and served over 1,000 learners.
School tours and programs and private tours served over 7,000 participants.
11 education events were held, reaching over 10,000 people 
Butterfly Pavilion visitation (May-July 2016): 5,603


Graduate Education and Research

As a research organization and institution of higher education, RSABG is involved with research in systematic and evolutionary botany (science fields that sort out the relationships and evolutionary history of plants).

Graduate Education

Claremont Graduate University (CGU) Department of Botany and RSABG
Lucinda A. McDade, Ph.D., professor of botany, and chair of the Botany Department
Enrollment (current as of 2016-17 academic year): 11 graduate students
Faculty:  three core faculty, one research associate professor, two research assistant professors, one professor emeritus
Courses:  graduate courses and seminars focus on plant systematics and evolutionary botany
Degrees offered:  M.S. and Ph.D.
Alumni:  156


Herbarium: 1.1 million specimens and ranks as the 13th largest in the U.S.
Library:  44,000 volumes, including 500 periodical subscriptions
The Library (non-circulating) consists of botanical and horticultural books and journals, and included in the Library is Susanna Bixby Bryant’s personal library with significant holdings on California history and botany.
Laboratories:  Molecular Lab, Anatomy Lab North, Anatomy Lab South, Growth Chambers
Publications: “Aliso” and occasional publications

Visitor Services

The Visitor Services Department manages guest relations, facility rental and event planning, the Garden Gift Shop, admission kiosk, public relations and marketing.

Figures below reflect 2013 data.
Annual visitation: 77,879
Over 7,000 guests came onsite during Facility Rental Events in 2013.

Volunteer Services

Volunteers:  230 RSABG volunteers contribute more than 24,000 hours of service on a yearly basis.


Public Relations and Marketing
Rancho Santa Ana Botanic Garden
1500 North College Avenue
Claremont, CA  91711
Phone: (909) 625-8767 ext. 260
email: This email address is being protected from spambots. You need JavaScript enabled to view it. 

Last updated: February 15, 2016