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Private garden in Walnut Creek exemplifying a water-conserving design, featuring dramatic succulents, cacti, and arid-climate trees. Limited visiting hours. Photo gallery, visitor information, history and plant profiles.

This educational and entertainment complex includes the McConnell Arboretum and Gardens and a butterfly conservatory. Visitor information and overview of programs and events.

This garden of water and fragrance in Van Nuys is fashioned after 18th and 19th century stroll gardens. It incorporates a dry garden, a wet garden with promenade, and an authentic tea ceremony garden. Includes descriptions, information, and photos.

This garden fronting directly on the Pacific coast includes woodland, perennial, rhododendron, dahlia, and camellia gardens, a fern canyon, and a pacifica iris collection. Photos, visitor information, and event calendar.

Features one of the most diverse plant collections in the United States, famous for its rare and endangered species. Information about collections, education, events, mission, and history.

Living museum, outdoor classroom, and public garden with thousands of tree and plant species adapted to a Mediterranean climate. News, information about visiting, and calendar of events and programs.

Located in Claremont, California, the Garden is home to 70,000 native Californian plants, representing 2,000 native species, hybrids and cultivars.

A 160-acre public garden in La Cañada near Los Angeles. Schedule of events, information on visiting, membership and volunteering.

On the campus of California State University, Long Beach. History, online tour with descriptions and photographs, and information about membership, events, and education.

Nonprofit education center in Walnut Creek serves as a living museum, a wildlife habitat, an outdoor classroom, and a place of beauty and enjoyment. Photos, information about membership and events.

Information and pictures covering the design, botanical collection, exhibits, events, and history of this garden located in Balboa Park.

Located on 65 acres in historic Mission Canyon, it features over 1,000 species of rare and indigenous plants.

Victorian show garden in the foothills of the Sierra Nevada, landscaped with iris, daffodils, wildflowers, shrubs and trees, and surrounded by an iris nursery.

Its mission is to foster an awareness and appreciation of the role of plants in nature and in human affairs.

Three-mile ribbon of park land along the banks of the Guadalupe River in downtown San Jose, featuring rose and rock gardens, sister city tributes, and a historic orchard.

Located on the UCLA campus, this garden maintains a large botanical collection,with plant specimens from all over the world, including tropical and subtropical plants.

Palo Alto community horticultural organization tends a property with a historic home, and formal and demonstration gardens. Virtual tour, featured plants, and information about events, education, and children's programs.

Japanese gardens built in 1918 in Saratoga, featuring koi pond, Zen and tea gardens, and a bamboo park. Photo gallery, visitor information.

Series of walk-through gardens in Sonoma showcasing innovative designs by various landscape architects. Information about the designers, events, and exhibits.

Devoted to the display and study of the plants and ecosystems of the world's five Mediterranean climate zones.

The oldest existing public conservatory in the western hemisphere, located in San Francisco's Golden Gate Park. Information on tours, plants, and using the facility for events.

Mediterranean gardens at Strybing Arboretum in Golden Gate Park presents mission and visitor information, detailed map, course catalog, and plant sale schedule.

Horticultural retreat in Corona del Mar, featuring a cactus and succulent garden, a tropical conservatory, rose, herb, and Japanese gardens. The library focuses on the history of the Pacific Southwest.

Description, photos, and plant listing for the garden within the Los Angeles visual arts center.

Garden in Thousand Oaks featuring collections of native plants, oak trees, water-conserving plants, and an abundant population of indigenous wildlife. Descriptions and information about events.

Located on the Palos Verdes Peninsula near Los Angeles, among this garden's distinct areas are a rose garden, a garden for the senses, a Japanese garden, and a cactus garden.

Non-profit arboretum and botanical garden at California State University, Fullerton. Community resource for ecological, horticultural, and historical education. Visitor information, maps, plant database.

Estate garden at the official residence of the President of the University of California, located in Kensington. Visitor information, map, and history.

Features rare and unusual plants from around the world in themed environments. Photo galleries, information about garden art and children's garden, and an event calendar. Near San Diego.

This 654-acre estate garden in Woodside represents the Golden Age of American Gardens, with house and gardens designed as complementary units. Events and educational programs, garden overview.

Large estate and botanic garden created by Madame Ganna Walska near Santa Barbara, composed of smaller themed gardens (Japanese, Australian; succulents, cycads, bromeliads, cacti). Education programs, events, visitor information.

Garden in Encinitas features rare bamboo groves, desert gardens, a tropical rainforest, California native plants, Mediterranean climate landscapes, and a subtropical fruit garden. Information about visiting, volunteering, children's and adult events and classes.

Features plants grouped by geographic origin: Australia, South Africa, New Zealand, and California, including a large collection of genus Erica. Visitor information, plant photo gallery, and event calendar.