| East Bay Regional Park Botanic Garden |
Berkeley (Tilden Regional Park) |
Largest and most comprehensive collection of California Native Plants. |
| University of California Botanical Garden |
Berkeley |
Extensive collection of plants from around the world, especially from Mediterranean climates. |
| San Francisco Botanical Garden |
San Francisco (Golden Gate Park) |
Over 8,000 varieties of plants, featuring high-elevation tropical plants and a cloud forest. |
| Ruth Bancroft Garden |
Walnut Creek |
Nationally renowned collection of dry-climate, water-conserving plants (succulents, cacti, and arid shrubs). |
| Filoli |
Woodside |
Historic estate with 16 acres of exquisite formal English Renaissance-style gardens. |
| Mendocino Coast Botanical Gardens |
Fort Bragg |
47 acres along the coastline, featuring rhododendrons, heathers, and coastal bluffs. |
| UC Davis Arboretum |
Davis |
100-acre public garden along Putah Creek, focused on regional landscaping and sustainable horticulture. |
| The Arboretum at Fresno State |
Fresno |
Diverse collection supporting instruction in ornamental horticulture and landscape design. |
| Huntington Botanical Gardens |
San Marino |
16 themed gardens, including one of the world’s most impressive desert gardens. |
| Los Angeles County Arboretum and Botanic Garden |
Arcadia |
Historic site with subtropical plants, aquatic gardens, and a famous flock of peafowl. |
| Descanso Gardens |
La Cañada Flintridge |
Known for its world-renowned collection of camellias, a rose garden, and native oak forest. |
| California Botanic Garden |
Claremont |
Largest botanic garden dedicated exclusively to California native plants (formerly Rancho Santa Ana Botanic Garden). |
| Santa Barbara Botanic Garden |
Santa Barbara |
Focused exclusively on the conservation and display of California native plants. |
| Lotusland (Ganna Walska) |
Montecito |
A spectacular estate garden famous for its eccentric and rare plant collections, including cycads and topiary. |
| South Coast Botanic Garden |
Palos Verdes Peninsula |
Built on a former sanitary landfill, known for its extensive environmental reclamation and plant diversity. |
| San Diego Botanic Garden |
Encinitas |
37 acres with 15 distinct microclimates, from bamboo groves to desert gardens. |
| Moorten Botanical Garden and Cactarium |
Palm Springs |
A private garden specializing in over 3,000 varieties of cacti and other desert plants. |