Sonoma Compost Organic Recycling since 1985
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Sonoma Compost Company

Contact Information

550 Mecham Rd, Petaluma, CA
Tel: 707 664 9113 Fax:707 664 1943
Hours: Monday-Saturday 7:00 am to 3:00 pm
Both for sales and drop-off
A drop-off charge for wood/yard debris applies

Keep Sonoma Compost Open

Show your support for the organics program by showing up for the Sonoma County Waste Management Agency. They are going to discuss the future of the current compost site.

Invitation Agency Meeting

Save Compost

The North Coast Regional Water Quality Control Board has communicated clearly that they desire the facility to remain open. See their letter here.

Your action is needed. A small group of Sonoma Compost Co's neighbors have filed a lawsuit, pressuring county supervisors to shut down local composting in Sonoma County. Not only would our County lose a valuable resource, but hundreds of tons of yard debris will need to be trucked daily to multiple facilities out of the county.
Our supporters, the farm community, have set up a petition. Please, click the image above to sign on and voice your support for this program. Please express appreciation for all they have done to keep organics in Sonoma County.

Products Now Available For Spring
Jane's Blend. Just in time to start your own seedlings. Jane's Blend was developed to offer a seed starting mix without non-renewable resources such as peatmoss and vermiculite.

Sonoma Compost does presentations about on-site composting, the benefits of compost to soils, the role of compost in IPM, etc. For those who attend the presentations I leave a copy of the most recent presentation here. If you have not had a chance to attend one of the talks, it will give you a sense of what will be discussed.

Lawn Conversion: A Tool To Live With Drought
Lawn Conversion We are facing a serious drought. Everyone has to chip in to cope with the drought. If you have a lawn, lawn conversion is a green way to conserve water, soil and labor. When you remove your lawn you also remove approximately 500 years of fertile soil. The lawn that is pulled out cannot be composted, since it has too much soil in it. In the landfill it contributes to greenhouse gases. So, why not just leave it in and turn it into the foundation for a drought tolerant native landscape or vegetable garden. Simply cover the lawn with compost, cardboard or newspaper and mulch, and nature will do the rest for you. For more information on how to do this take a look at our Lawn Conversion document.

Food Scrap Composting In Restaurants: A How To Guide
Vegetative food scraps are now being collected in the city of Sonoma. The video below, produced for Sonoma Compost by Ariana Victor, provides step by step instructions how to set-up a successful food scrap recycling program.

Stay in Touch, Join Us On Facebook
Facebook_Logo You can now find out first when we have a sale, a new product or any other news, join a discussion or post your pictures. We are almost at 1,000 Friends, help us jump the line. We'd love to hear from you.

Organic • Local • Affordable
We operate the successful Sonoma County Organic Recycling Program. We Keep It Cleanproduce premium quality organic compost and mulch from 100% recycled organics. To date over 1,600,000 tons of organics have been diverted from the landfill and turned into valuable compost and mulch.

To check what materials are accepted at our site, or which ones are not, please see the Organic Recycling Guide. Sonoma Compost does not accept compostable plastic products. Read our Pitfalls to Compostable Plastics document.

Our soil products are used by Sonoma County’s most prestigious grape growers, organic farmers, backyard gardeners and professional landscapers. We also sell good quality recycled lumber and firewood at very affordable prices.

OMRI LogoWe have one of northern California’s largest selection of organic compost and mulches. Our Sonoma Compost, Organic Hi-Test Compost, Mallard Plus, Feather-Lite Amended Soil and Vineyard Mulch are all listed as “Allowed” materials with the Organic Materials Review Institute (OMRI) and registered with the California Depertment of Food and Agriculture (CDFA) for use in the production of organic food and fiber. Because of our listing, you’ll find our compost used on many of California Certified Organic Farms (CCOF). CDFA Logo

Sonoma Compost promotes organic and sustainable management  practices that minimize chemical use and emphasize preserving and rebuilding our valuable topsoil resource.

Putting It All in Perspective
Sonoma Compost has provided compost and mulch services for over 25 years. We hope you'll enjoy this video and learn more about Sonoma Compost.

Sonoma Biochar
NOTE: TEMPORARILY OUT OF STOCK. Sonoma Biochar is a new innovative product that improves soils in a sustainable, lasting way. While improving your soil, carbon is taken from the atmosphere, locking it into the earth for thousands of years, thereby reducing greenhouse gases. Biochar will greatly enhance the water holding capacity of your soil, conserve nutrients through its high cation exchange capacity (CEC) and help increase microbial populations and diversity. Read more.

Food Scrap Program Takes Composting to the Next Level
Sonoma Compost, in collaboration with the City of Sonoma and Sonoma Garbage Collectors, launched a new program in the spring of 2011 to collect food scraps from commercial kitchens in the City. Sonoma Compost is working to establish similar programs throughout the County.

For more information on this program, please read the related article in Sonoma News.

Take a Relaxing Virtual Tour of the Sonoma Compost Facility
Follow your yard debris and kitchen scraps from entering the facility, through the grinder, in the windrow, passing the screen to finally end up feeding the soil. Sit back and enjoy!

Celebrate Sonoma - Compost from James Parker on Vimeo.

Sonoma Compost Supports School Gardens
We work closely with local schools to promote organic recycling and educate school children about the importance of nature’s decomposition process. We are proud to donate compost to school garden programs and provide interesting field trips to our organic recycling facility.

Sonoma Compost Produces Biodynamic Composts
Demeter Logo Biodynamic agriculture was developed to address depletion of soils following the introduction of chemical fertilizers at the turn of the century. Biodynamic principles conceive of the farm as a self-contained organism with an integrated system of crops and livestock emphasizing food quality and soil health.

Sonoma Compost produces two Biodynamic Composts: Sonoma Biodynamic Compost (for vines, trees and native plants) and Biodynamic Hi-Test Compost (for hi-nitrogen loving crops such as vegetables. Next batch will be available in July). Sonoma Compost Biodynamic Composts were developed with the assistance of experts from the Josephine Porter Institute of Applied Biodynamics and the Biodynamic Association of Northern California using the Demeter® Association’s Commercial Composting Standard as a guideline. The Demeter certification program was the first ecological label for organically produced foods.

Sonoma Compost Biodynamic Composts are created using the same process used to produce our other trusted composts. These specialty products are lab tested and listed by the Organic Materials Review Institute (OMRI) for use in organic production and are Demeter Certified for use in Biodynamic vineyards, farms, market, and home gardens. For more detailed information see our Biodynamic Compost Information.

Read Our Article in the Biodynamic Association of Northern California BDANC Newsletter(Click image) BDANC Newsletter

A Primer on Backyard Composting

Sonoma Compost - 550 Mecham Road, Petaluma, CA 94952
Phone: 707.664.9113; Fax: 707.664.1943;
Hours: Monday - Saturday 7 a.m. to 3 p.m. Sundays - Closed