- Bountiful Gardens
- Willits - Offers untreated open-pollinated seed of heirloom quality for vegetables, herbs, flowers, grains, green manures, compost and carbon crops, and Biointensive and Grow Biointensive sustainable organic seed. - Ecology Action
- Willits - Researching, developing, and sharing millenia-old techniques for growing more food in a small area, using simple tools and seeds, while maintaining or increasing the health and productivity of the soil. - Evergreen Gardenworks
- Ukiah - Dedicated to growing traditional, rare, and unusual species of plants for use as bonsai. - Common Ground Organic Garden Supply and Education Center
- Palo Alto - Not-for-profit project of Ecology Action featuring classes and events as well as tools, seeds, plants, soil amendments, and more. - Shadowbox Construction
- Richmond - Manufacturer of the Whitehole Composter, furrow rake, germination tables, and other gardening supplies. - Henningsen circlehoe
- Sebastopol - Circular hoe garden tool designed for weeding and cultivating close to perennials and vegetables without damaging stems and roots. - Wildflower Seed Company
- Saint Helena - An assortment of wildflower seed mixtures, as well as bocce balls, and grape shears. - Larner Seeds
- Bolinas - Sells native California seeds and plants. Also sells the book Gardening with a Wild Heart by Judith Larner Lowry. - Grow Biointensive Workshops
- Willits - John Jeavons offers mini workshops on biointensive gardening. - Urban Farmer Store
- Mill Valley - Selling sprinklers, drip irrigation, lighting, and pond and fountain supplies. - Bamboo Accents
- Richmond - Manufacturers of bamboo products for home and garden: flooring, poles, furniture, fencing, garden accents, and more. - Pure Food
- Mountain View - Retailer of indoor/outdoor growing supplies. - Rod Mclellan Company, The
- San Mateo - Wholesale and retail grower of orchids, eucalyptus and gardenias, also makes potting soil. - Commercial Tree Care
- San Jose - Offers tree pruning, removals, stump grinding, root barriers, planting, and arborist reports. - Swings n' Things
- Danville - Swingsets, slides, play towers, forts, and other outdoor equipment. - L&W Tractor Service
- Services include fence installation, mowing, rototilling, and post hole drilling for vineyards, pastures, unimproved lots, or homeowners needing light-duty tractor service. - Magic Mushroom Garden Statuary
- Sonoma - Sculpted cement mushrooms with optional attachments for your drip irrigation system. - I Make Bells
- Half Moon Bay - Creates custom bells in various sizes, produced using recycled metal pressure cylinders. Supports, clappers, and hangers are hand crafted from recycled materials such as scrap iron, old farm equipment, and aged wood. - Welton Rotz Stone Sculpture
- Sausalito - Hand-crafted stone water sculptures, benches, and figurines formed in granite, marble, limestone, and sandstone. - Sunnyvale Nursery
- Sunnyvale - A retail garden centre sells plants, flowers, lawns, vegetables, garden supplies and gardening products. - Marin Tree Service
- San Rafael - Specialising in tree preservation and arborist services for Marin County. - Sheds and Swings
- Vacaville - Build many sizes and models of custom and standard storage and tool sheds as well as playhouses and swingsets. - Happy Gardener, The
- Contra Costa County - Offers lawn care, residential irrigation schedules, drought survey information, and lawn and garden care in Contra Costa county. - Greenbaum Sonoma Tree Service
- Sebastopol - Offers all types of tree service and care including pruning, removal, total yard restoration, fire hazard reduction, tree maintenance, land clearing, chipping, shaping, daylighting, view restoration, and crown reduction. Serving Sonoma County. - Paul Bauman's Tree Service
- Provides pruning like tree trimming, branch removal, tree trimming, and thinning. Also includes tree removal services.
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