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

Call for Action: 350 Home and Garden Challenge
What action can you take in your daily life to reduce greenhouse gasses? This is the fourth year we are sponsoring the Daily Acts' 350 Home and Garden Challenge. This year the challenge has once more been raised: 3,500 registered actions. We need your help to meet this goal. Grow your own vegetables, get a community garden going, start a compost pile, conserve water, save energy, tell your friends. Register your action and Sonoma Compost will give you one cubic yard of Sonoma Compost for free (must be claimed no later than May 18th, no substitutes or upgrades, retail pick-up only or can be made part of a larger delivery). Don't wait, register now (click on image below).

350 Home and Garden Challenge Banner

Read Our Winter '13 Newsletter (Click image) Newsletter

Giant Pumpkin Contest
A Project of Sonoma Compost Company & the Petaluma Seed Bank

What a fun summer project for the family! Pick up some specialty giant pumpkin seed from Sonoma Compost along with your purchaseFacebook_Logo of compost and you can win 10 yards of any of our compost or mulch products. 
Fill out this entry form and return it by June 3, 2013 to our office or by fax to (707) 664-1943. Grow your pumpkin in our compost and then bring your pumpkin to the National Heirloom Exposition in September for judging. All rules and contest information are on our entry form, or you can call our office at (707) 664-9113 for more details.
You will be contacted by August 15 for weigh-in and transportation instructions. Pumpkin weigh-in will occur at the National Heirloom Exposition September 10-12, 2013.
This is a special project of Sonoma Compost and the Petaluma Seed Bank. The National Heirloom Exposition holds a separate pumpkin contest as well. Learn more about the Expo here.

Our Annual Xmas Tree Mulch Is Now Available
Facebook_Logo Your Xmas trees have found a new life: Xmas Tree Mulch. This mulch is perfect for acid loving plants such as blueberries, rhubarb, potatoes, rhododendrons, azaleas, etc. Our supply is limited, so get it while it is still available



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'd love to hear from you.

People & Planet Green Business Award
Green America People Planet Award Announced September 19, 2012: Sonoma Compost is honored to have received the top ranking for Green America's first quarterly "People & Planet" award, which recognizes America's best green, small businesses. Sonoma Compost will donate the $5,000.00 prize to Daily Acts. The three winners are: Sonoma Compost Company, Green Kid Crafts, and Raleigh City Farm. Sonoma Compost was among about 250 small businesses around the country vying for the award.
Denise Hamler, director, Green Business Network, Green America, said: "Green America is proud to present the inaugural People & Planet Award to these three green businesses that are making outstanding and creative contributions to their communities. Their values and business models exemplify the type of business our society and world need now more than ever."
Many thanks to all for your votes and support.

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
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.

Organic • Local • Affordable
We operate the successful Sonoma County Organic Recycling program. We produce premium quality organic compost and mulch from 100% recycled organics.

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) for use in the production of organic food and fiber. Because of our listing, you’ll find our compost used on a number of California Certified Organic Farms (CCOF).

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

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). 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; office@sonomacompost.com
Hours: Monday - Saturday 7 a.m. to 3 p.m. Sundays - Closed