Organizations by District
| Arboretum | California Organic Gardening Club Chevy Chase Estates Garden Club Floralia Guild Chapter 20 Friend O Garden Club of El Monte Its Garden Thyme Monrovia Garden Club San Marino Garden Club Sierra Madre Garden Club of Southern California Year Around Garden Club |
| Bay Bridges | Alameda Garden Club American Begonia Society San Francisco Branch Berkeley Garden Club Dirt Daubers Garden Club Eden Garden Club, Inc. El Cerrito Garden Club Fremont Garden Club Friends of Heirloom Flowers Hillside Gardeners of Montclair Hoe and Hope Garden Club Pinole Garden Club San Leandro Garden Club |
| Bay Ocean | Atherton Garden Guild California Garden and Landscape History Society Carolands Garden Club Civic Garden Club of San Carlos Floral Artists of the Bay Area (FAB) Garden Club of St Francis Wood Garden Study Club of the Peninsula, Inc. Organization of Floral Art Designers Pacifica Garden Club San Francisco Epiphyllum Society San Francisco Fern Society San Francisco Peninsula Camellia Society San Mateo Arboretum Society, Inc. Woodside Hills Garden Club |
| Buttes | Bidwell Designers Guild Chico Horticultural Society Friendly Garden Club of Orland Garden Club of Colusa County Green Thumb Garden Club of Gridley Lake Oroville Area Garden Club Magalia Beautification Association Paradise Garden Club, Inc. The Sutter Buttes Garden Club, Inc. |
| Cascade | Anderson Valley Garden Club Cascade Arrangers Guild Cottonwood Garden Club, Inc. Lake California Garden Club, Inc. Red Bluff Garden Club, Inc. Redding Wonderland Garden Club Shasta Lake Garden Project |
| Channel Islands | Conejo Valley Garden Club Las Floralias Malibu Garden Club Ojai Valley Garden Club Organic Garden Club of Ventura County Pleasant Valley Garden Club Sogetsu School of Ikebana San Fernando Valley Branch Ventura County Garden Club Westlake Village Garden Club |
| Costa Verde | Hermosa Garden Club Long Beach Garden Club Riviera Garden Club San Pedro Garden Club South Bay Orchid Society South Coast Floral Designers Desert Empire Desert Rose Garden Club of California City Oasis Garden Club of Indian Wells Valley |
| Desert Empire | Desert Rose Garden Club of California City Oasis Garden Club of Indian Wells Valley |
| Diablo Foothills | Blackhawk Bloomers Garden Club Clayton Valley Garden Club Discovery Bay Garden Club Livermore-Amador Valley Garden Club Northern California Camellia Society Walnut Creek Garden Club |
| Golden Foothills | Auburn Arrangers Guild Auburn Garden Club Auburn Golden Gardeners, Inc. Chicago Park Garden Club Colfax Garden Club Divide Garden Club Orangevale Farm and Garden Club Organic Gardening Club of Sacramento County Placerville Garden Club Roseville Better Gardens Club |
| Greater Los Angeles | Culver City Garden Club Geranium Society Ikebana International Los Angeles Chapter #4 Los Angeles Garden Club, Inc. Pacific Palisades Garden Club Westside Cymbidium Society |
| Humboldt | Eureka Sequoia Garden Club, Inc. Ferndale Garden Club Fortuna Garden Club, Inc. Patricks Point Garden Club Petrolia Garden Club Redwood Coast Succulent Society Southern Humboldt Garden Club, Inc. |
| Luther Burbank | Digging in the Gardens of Sonoma (DIGS) Healdsburg Garden Club Mens Garden Club of Santa Rosa Petaluma Garden Club Rohnert Park Garden Club Santa Rosa Flower Arrangers Guild Santa Rosa Garden Club Valley of the Moon Garden Club Windsor Garden Club |
| Mendo-Lake | Clear Lake Trowel and Trellis Garden Club Fort Bragg Garden Club Potter Valley Garden Club Ukiah Garden Club Willits Garden Club |
| Montana de Oro | Cayucos Garden Club Central Coast Cactus and Succulent Society Floral Design of San Luis Obispo Lompoc Valley Botanic and Horticultural Society Los Osos Valley Garden Club Multiflora Garden Club |
| Orange County | A Land Lovers Garden Club Anaheim Garden Club Del Norte Garden Club of North Orange County Huntington Harbour Garden Club Huntington View Garden Club Laguna Beach Garden Club, Inc. Lake Forest Garden Club Mission Viejo Garden Club Naples Islands Garden Club Newport Hills Garden Club Niguel Shores Garden Club Orange County Fuchsia Society Orange County Organic Gardening Club San Clemente Garden Club San Juan Capistrano Garden Club Tustin Garden Club |
| Palms to Pines | A Garden Club of Big Bear Valley Coachella Valley Plumeria Society Idyllwild Garden Club Riverside Community Flower Show Association San Gorgonio Garden Club |
| Palomar | Alpine Garden Club Bernardo Gardeners Club Bonita Valley Garden Club Bridge and Bay Garden Club Carlsbad Community Gardens Collaborative, Inc. Carlsbad Garden Club Chula Vista Garden Club Crown Garden Club of Coronado Del Mar Garden Club Del Mar Mesa Garden Club Descanso Garden Club Dos Valles Garden Club Fallbrook Garden Club Green Valle Garden Club, Est. 1965 La Jolla Garden Club Lakeside Garden Club Mission Hills Garden Club Paradise Gardeners Point Loma Garden Club Poway Valley Garden Club Ramona Garden Club San Diego Bromeliad Society San Diego County Garden Guild San Dieguito Garden Club Temecula Valley Garden Club The Village Garden Club of La Jolla Vista Garden Club |
| Roadrunner | Cactus Wren Garden Club Desert Crossroads Garden Club Hesperia Garden Club |
| Sacramento River Valley | Arden Park Garden Club Clarksburg Garden Club Davis Flower Arrangers Elk Grove Garden Club Fairfield Garden Club Folsom Garden Club Gardeners of the Grove La Perita Garden Club Pioneer Garden Club River Valley Garden Club Sacramento Floral Design Guild Shibui Arrangers Guild Vaca Valley Garden Club Vallejo Garden Club Woodlake Garden Club |
| San Fernando Valley | Burbank-Valley Garden Club Cherry Blossom Garden Club High Desert Garden Club of Acton-Agua Dulce Southern California Garden Club Sunshine Garden Club Toluca Lake Garden Club West Valley Garden Club Woodland Hills Floral Designers |
| Santa Clara Valley | Carmel Valley Garden Club Cupertino Green Club Furyu Floral Designers Green Thumb Garden Club of Milpitas Ikebana International Monterey Bay Chapter #231 Marina Tree and Garden Club San Jose Garden Club South Valley Fleurs Garden Club The Gardeners Club Willow Glen Garden Club |
| Sequoia Foothills | Bakersfield Garden Club Camellia Society of Kern County Caruthers Garden Club Four Seasons Garden Club Garden Club of Porterville Hanford Garden Club Redbud Garden Club Sequoia Garden Club Valley Oak Garden Club |
| Top O’ The State | McCloud Garden Club Yreka Garden Club |
| Valley Lode | Art and Flower Guild Calaveras County Garden Club, Inc. Ceres Garden Club Escalon Farmington Community Garden Club Foothill Garden Club Knights Ferry Garden Club Linden Community Garden Club Manteca Garden Club Modesto Garden Club, Inc. Newman Garden Club Oakdale Garden Club Patterson Garden Club Ripon Garden Club, Inc. Salida Garden Club Stockton Garden Club, Inc. The Lodi Garden Club Tuolumne County Garden Club Turlock Garden Club Valley Floral Arrangers Guild |
| Yosemite Gateway | Atwater Garden Club and Camellia Society Le Grand Community Garden Club Manzanita Garden Club of Oakhurst Merced Garden Club, Inc. |