Our leaf  denotes an organization or business that wants to show support for our community of gardeners and horticulturists. If you’d like to add your business to the list visit our Membership page and sign up today.

Public Gardens: Bay Area
San Francisco Botanical Garden (formerly Strybing Arboretum)
Regional Parks Botanic Garden at Tilden Park
UC Botanical Garden at Berkeley

Ruth Bancroft Garden, Walnut Creek – cactus and succulents
Sonoma Botanical Garden (formerly Quarry Hill Nursery), Glen Ellen
Filoli – great estate garden to visit in Woodside, California
The Gardens at Heather Farms – five acre garden in Walnut Creek dedicated to horticulture

Public Gardens: California
The Huntington San Marino CA
Descanso Gardens La Cañada Flintridge, CA
Mendocino Coast Botanical Gardens
San Diego Botanic Garden
Leaning Pine Arboretum  Cal Poly, San Luis Obispo

Events: Bay Area
Pacific Horticulture  – webinars and travel tours
Plant Exchange of Oakland – 2x-a-year free community event in Oakland, California, encourages exchange, recycling, reuse.
Ploughshares Nursery offers  free workshops.
UC Botanical Garden calendar
Regional Parks Botanic Garden calendar

Organizations and Societies: Bay Area
California Native Plant Society – dedicated to California native plants
Foothill College Horticulture Club
The Marin Rose Society
San Francisco Rose Society
Western Horticultural Society

Organizations and Societies: International
Mediterranean Gardening International (MGi)
MGi is an international group of societies, including Cal Hort, for people with an interest in Mediterranean plants and gardens. The other groups are:

Cape Horticultural Society (Cape Town, South Africa)
Mediterranean Gardening Association Portugal
Mediterranean Gardening Chile
Mediterranean Gardening France
Mediterranean Gardening Margaret River (western Australia)
Mediterranean Plants and Gardens (UK)
Okanagan Xeriscape Association (British Columbia)

The Mediterranean Garden Society – Filled with great cultural info and has a very active forum. Founded in Greece with members in 38 countries. 
American Bamboo Society – all you need to know about bamboo. Message boards and species list.
American Iris Society – Full of information (including photos) on many different types of iris – not only tall bearded iris. (The Bay Area is in Region 14)
American Rhododendron Society
Pacific Bulb Society
North American Rock Garden Society
California Rare Fruit Growers – information on growing uncommon fruits and vegetables

Mediterranean Climate Regions (see also “Organizations and Societies: International” above)

California
CalFlora.org: The most extensive searchable database and photo gallery of California plants
Jepson Online Index: Consists of more than 12,000 names in current and/or recent use. Links to photos
Australia
Association of Societies for Growing Australian Plants -information on growing Australian plants with lots of photos.
Australian National Botanic Garden – information on Australian plants
South Africa
PlantZAfrica – Photos of some of the 22,000 native species
National Botanical Institute, ZA; info on South Africa’s 8 botanic gardens

Desert Wildflowers
Exploring the Sonoran Desert – Photos of Sonoran Desert flora and fauna
High Desert Plants – Photos/information on plants of California’s high elevation deserts
Desert wildflower hotline alerts – California and Arizona
National Park Service wildflower “Events” Check before traveling.

Plant Photos and Information
CalPhotos – 34,000+ photos of California plants
CalFlora.org: Database of California plants
calflora.net Southern California wildflowers
Flowershots – Photographer Ron Parson’s site filled with beautiful images, specifically orchids and other flowers.
The Plant Kaleidoscope – 700 photos of plants grown in europe
Plantentuin Esveld – hundreds of photos of commonly grown horticultural plants; hundreds more can be ordered (free; fee for commercial use).
Digital Flora of Texas – A searchable data base of images of Texas plants

Gardening
Dave’s garden: plant database, gardening discussion forums, seed trading, and what he calls journals: individual gardeners’ lists of what plants they are growing, and how they have done
Vireya.net -tropical Rhododendrons which can be grown in coastal California
Plants For A Future – database of edible and medicinal plants
Bonsai – Bonsai Articles by Brent Walston and other authors

Propagation
Tom Clothier’s Seed Germination Database – one of the most comprehensive on the Web – Plus Tom’s Tips & Tricks on lots of gardening subjects
The Rooting Database – by Dr. Choong Lee and Dr. David W. Burger

Stone Fruit Propagation References – U.C. Davis

Reference
Dictionary of Botanical terms
Botanical Glossary – A fully hypertext ‘dictionary32’ explaining the latin in plant names. Find out what a fugacious leaf is! From B+T World Seeds
Common/Latin name dictionary  Know only the English common name of a plant? This site will give you the Latin name for about 20,000 common English names. Also from B+T World Seeds.

Diseases, Pests and Weeds
Pest management – information on pests and pest management from UC Davis
Global Compendium of Weeds – Information on thousands of world-wide weed species

Beneficial Insects and Pollinators
Las Pilitas Butterfly host plant list – Las Pilitas Nursery
Buglogical – source for beneficial nematodes

Nurseries: Greater Bay Area
Annie’s Annuals Richmond CA
 Sierra Azul Nursery & Garden, Watsonville – beneficial, edible, and drought tolerant and exotic plants, demonstration and sculpture garden
Berkeley Horticultural Nursery, Berkeley CA
The Dry Garden – good selection of drought tolerant plants + expertise
East Bay Wilds – CA native plants
Hidden Forest Nursery – Azaleas, Rhododendrons and other shade lovers
Momiji Nursery – great selection of japanese maples
Monterey Bay Nursery
Mostly Natives Nursery
Sloat Garden Centers – great selection of high quality plants
Native Here Nursery – good selection of plants native to the East Bay (SF Bay Area)
Ploughshares Nursery – great selection of native & drought plants (Alameda) + workshops

Nurseries: Mail Order
Geraniaceaea, Marin County
Pacific Islands Nursery – Vireyas (tropical rhododendrons)
Plant Delights
Las Pilitas California natives
Digging Dog Nursery
Flowers by the Sea Salvias
High Country Gardens  Many Waterwise Perennials

Seeds: Mail Order
Larners Seeds: California native plants, trees, shrubs
Seedman.com Various seeds, including exotic and tropical plants
Angelgrove Seed Company. Various tree seeds, including Japanese maples
Seedhunt – loads of cool things.
J.L. Hudson Seeds – many rare and hard to find seeds. Since 1911.
Silverhill South African seeds
Chileflora Chilean seeds
Johnny’s Seeds Seed starting Supplies

Blogs
http://www.indefenseofplants.com Matt Candeis

Landscape Architects and Designers
Feyerabend & Madden Landscape Design, SF Bay Area
Toolbox Design, SF Bay Area
Hasselgren Gardens, SF Bay Area
Lutsko Associates, SF Bay Area
Vanessa Kuemmerle, Vee Horticulture,  SF Bay Area