LetsGoSeeIt.com - Your Guide to Southern California and Beyond




Rancho Santa Ana Botanic Garden


Rancho Santa Ana Botanic Garden




About our Garden
ABOUT
OUR GARDEN...


The Rancho Santa Ana Botanic Garden is a private, nonprofit research and education institution devoted to California flora. The plants on display are native species or cultivated forms developed from them. A few are ancient components of California flora or close relatives of our native species. Many rare and endangered species are grown here and the staff conducts research to conserve these important vanishing plants. Established in 1927 by Susanna Bixby Bryant in Orange County, the Garden moved to Claremont in 1951.

The Garden is a leading American research center in systematic and evolutionary botany. Programs focus on identification, classification, ecology, and evolution of plants. Our library, herbarium of preserved plants and laboratories all support research and education programs.

Many cultivated forms of native California plants for use in landscaping have been developed here through hybridization and selection. These plants are adapted to our climate and require less water than many introduced species.

The Garden offers a graduate program in botany with the Claremont Graduate School. Our community education program offers classes, lectures, tours, and special programs for schools and for people of all ages.




California's Floristic Provinces

California's Floristic Provinces
In nature, the distribution of plants rarely coincides with political boundaries, but rather is determined by the interaction of climate, geology and geography. A regional association of plants that share these growing conditions is called a
FLORISTIC PROVINCE.
In North America, there are thirteen floristic provinces. Four occur in California: Californian, Vancouverian, Sonoran and Great Basin.



CALIFORNIAN
is defined by its Mediterranean climate. It is the smallest floristic province in North America, but has the greatest diversity of plants north of Mexico. It includes such characteristic vegetation as chaparral, coastal sage scrub, oak woodland and grassland. These plants exhibit classic adaptations to California's hot dry summers and cool wet winters.

VANCOUVERIAN
encompasses the state's major forests and includes the mixed evergreen and coniferous forests of pines, mandrones and coast and sierran redwoods. In California, this province is transitional between Mediterranean-climate vegetation and the temperate coniferous rainforests of the Pacific Northwest.

SONORAN
is characterized by the giant cacti and desert scrub of the American Southwest and Mexico. At the edge of this province, California's desert vegetation is defined by joshua tree woodland, fan palm oasis and creosote bush scrub.

GREAT BASIN
is dominated by the vastness of sagebrush scrub vegetation - the "sagebrush ocean." The majority of this high-elevation semidesert lies to the east of California in the rain shadow of the Cascade and Sierra Nevada mountain ranges.



Rancho Santa Ana Botanic Garden's living collection is gathered from the entire Californian Floristic Province and the California portions of the Vancouverian, Sonoran, and Great Basin provinces.




Cultivar Garden
Rancho Santa Ana Botanic Garden is known for its cultivars. An entire section of the Garden is dedicated to cultivars. It contains informational signs explaining what cultivars are, and tracing the history of cultivars in California
 
Cultivar Garden

Visit the Cultivar Garden




Trustees Oak Grove
 
Trustees Oak Grove Trustees Oak Grove

Trustees Oak Grove Trustees Oak Grove




Palm Oasis
 
Palm Oasis California Fan Palm oases are unique ecological islands in the warm Colorado Desert of Southeastern California, and are closely associated with groundwater seeps along the San Andreas fault complex. There are two types of California Fan Palm oases. Seep oases are elevated or occur on hillsides, and typically have fine textured, alkaline soils due to constant evaporation of water. Canyon oases are usually found at the bottom of steep-sided canyons, and usually have coarser, less alkaline soils due to frequent flooding.

The California Fan Palm, Washingtonia filifera, may grow 70 feet high and exceed 40 inches in diameter, and is the only palm native to the western United States. Its distinctive features include huge leaves with accordion-like folds and a skirt of dead leaves.

Fire is an integral part of the ecology of California Fan Palm oases. Mature palms are fire tolerant whereas most of the understory plants are not. Fire suppression eliminates palm reproduction in oases by allowing a dense understory to develop which inhibits palm seed germination. Other threats to the California Fan Palm oases are unregulated urban growth, exploitation of groundwater, and competition from introduced plant species such as tamarisk.
 

Palm Oasis Palm Oasis




Susanna Bixby Bryant plaque
RANCHO SANTA ANA
BOTANIC GARDEN

FOUNDED IN 1927 BY

SUSANNA
BIXBY
BRYANT

IN MEMORY OF HER FATHER
JOHN W. BIXBY
IN ORDER TO FURTHER
PUBLIC KNOWLEDGE AND
ENJOYMENT OF THE TREES
AND SHRUBS AND FLOWERS
NATIVE TO CALIFORNIA

THIS BUILDING ERECTED IN 1951




Pictures of other garden areas

gardens gardens gardens

gardens gardens gardens

gardens gardens gardens




Rancho Santa Ana Botanic Garden is located at 1500 North College Avenue, Claremont, CA. See map.




Items of Interest...







Related Links