Sonoma Compost Company
  Welcome
  Regional Compost Program
  School Garden Program
  Municipal Consulting
  Contact Us
Our Products
  Products / Pricing
  Biochar
  Application
  Delivery
  Recycled Wood Products
Why Use Sonoma Compost
  Soil Improvement
  Environmental Benefits
  Yes, We're Organic!
Sonoma Compost in Use
  Agriculture
  Landscaping
  Backyard Gardening
  Erosion Control
Compost Forum
  Ask the Experts
  Helpful Hints

News Department
  Research Projects
  Changes at SCC

 

General Information

550 Mecham Rd, Petaluma, CA
Tel: 707 664 9113 Fax:707 664 1943
Hours: Monday-Saturday 7:00 am to 3:00 pm
Closed Monday September 1 for Labor Day
Both for sales and drop-off

Diverse Line of Products to Meet Your Needs
Sonoma Compost Co. is proud to present one of the most diverse product lines in the industry. Each product is designed to meet the needs of agrarians, landscapers and the backyard gardener. Please, browse this page to select the product that works best for your soil, your plants and you. You can refer to the table to estimate how much material you will need or you can use an online calculator Of course, our knowledgeable staff is happy to assist you in deciding which product best suits your needs (707 664 9113).
For our cancelation/refund policy please see our policy here

Products Grid To help you grow healthy, vigorous plants we desiged our composts to address various growing conditions. We find well drained sandy soils in Sonoma County as well as poorly drained clay soils. Vegetables and roses are heavy feeders and like nitrogen. Natives, trees, shrubs and grapes on the other hand get better structure and perform better with a low nitrogen compost. The grid on the left can help you decide which compost best suits your needs.

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.

Click on Products Below to See Pricing and Description

Sonoma Compost

Terra Lite

Organic Hi-Test Compost

Mallard Plus

Biodynamic Composts

Vineyard Mulch

Path Mulch

Feather-Lite Amended Soil

Compost/Mined Lime Blends

Deck Mix

Sonoma Compost (Organic)
Sonoma CompostThis dark, rich, premium quality compost is made from recycled yard trimmings and vegetal food waste. Sonoma Compost is recommended for applications that do not require high nitrogen content such as trees, shrubs, grape vines and natives.
(Click picture to enlarge)

Provides valuable organic matter to soil, making it easier to work and more productive. In sandy soil it increases moisture-holding capacity, making soil nutrients more available to plants. In heavy clay soils, porosity is increased which improves aeration in the root zone and overall drainage.

Sonoma Compost provides a wealth of slow release nutrients and beneficial microbes to your soil and plants. It's screened to approximately <1/2".

Sonoma Compost is lab tested and listed by the Organic CDFA OMRI ListedMaterials Review Institute (OMRI) and the California Department of Food and Agriculture (CDFA) for use in organic production (See label).

Quantity Price
1-12 Cubic Yards $ 17.00/Cubic Yard
13-24 Cubic Yards $ 16.50/Cubic Yard
25-100 Cubic Yards $ 16.00/Cubic Yard
101-250 Cubic Yards $ 15.00/Cubic Yard
251-500 Cubic Yards $ 14.00/Cubic Yard
501+ Cubic Yards $ 13.00/Cubic Yard

To Top


Terra Lite (Organic)
Terra LiteIn response to requests for a compost that improves the workability of clay soils with plants that thrive in low nitrogen environments we have created Terra Lite.
(Click picture to enlarge)

We’re blending our Brown Rice with our Sonoma Compost. This compost is ideal for trees, shrubs, natives and grapes.

This high quality soil amendment provides all the soil conditioning benefits of mature compost and has a neat, uniform appearance. It's the perfect material for making heavy clay soils easier to work and sustain slow, steady growth. Terra Lite is light and easy to work into the soil of your garden or landscape. Its screened to approximately <½”.

CDFA RegisteredTerra Lite is lab tested and listed by the California Department of Food and Agriculture (CDFA) for use in organic production (See label).

Quantity Price
1-12 Cubic Yards $20.00/Cubic Yard
13-24 Cubic Yards $19.00/Cubic Yard
25-100 Cubic Yards $18.00/Cubic Yard
101-250 Cubic Yards $17.00/Cubic Yard
251-500 Cubic Yards $16.00/Cubic Yard
501+ Cubic Yards $15.00/Cubic Yard

To Top

Organic Hi-Test Compost
Organic Hi-Test CompostAll the benefits of Sonoma Compost but with higher nitrogen content from the inclusion of chicken feathers.
(Click picture to enlarge)

Organic Organic HI-TEST is great for new gardens and landscapes, especially where soils have been neglected or overworked. In addition to improving soil structure, our HI-TEST Compost will give new plants the nitrogen needed for a vibrant start.

It's an excellent long-term soil conditioner and will add moisture-holding capacity to sandy West County soils. It’s screened to approximately <½”.

CDFA OMRI ListedOrganic Organic HI-TEST is listed by the Organic Materials Review Institute (OMRI) and the California Department of Food and Agriculture (CDFA) for use in organic production (See label).

Quantity Price
1-12 Cubic Yards $21.00/Cubic Yard
13-24 Cubic Yards $20.00/Cubic Yard
25-100 Cubic Yards $19.00/Cubic Yard
101-250 Cubic Yards $18.00/Cubic Yard
251-500 Cubic Yards $17.00/Cubic Yard
501+ Cubic Yards $16.00/Cubic Yard

To Top


Mallard Plus (Organic)
Mallard PlusOur Mallard Plus (a blend of Organic Hi-Test Compost and rice hulls) has been getting rave reviews for years. Vegetable growers with clay soils love it.
(Click picture to enlarge)

We’re blending our rice hulls with our Organic HI-TEST Compost. The nitrogen rich chicken feathers in the HI-TEST will make a noticeable difference in your garden’s performance.

This premium quality amendment provides all the soil conditioning benefits of good compost, a higher nutrient content, and has a neat, uniform appearance. It's the perfect material for making heavy clay soils easier to work and more productive. Better yet, it’s light and easy to move around your garden or landscape.

CDFA OMRI ListedMallard Plus is listed by the Organic Materials Review Institute (OMRI) and the California Department of Food and Agriculture (CDFA) for use in organic production (See label).

Quantity (Screened) Price
1-12 Cubic Yards $25.00/Cubic Yard
13-24 Cubic Yards $24.00/Cubic Yard
25-100 Cubic Yards $23.00/Cubic Yard
101-250 Cubic Yards $22.00/Cubic Yard
251-500 Cubic Yards $21.00/Cubic Yard
501+ Cubic Yards $20.00/Cubic Yard

To Top


Biodynamic Composts
Sonoma Compost has developed two Biodynamic Composts analogous to Sonoma Compost and Organic Hi-Test Compost, but they have been prepared incorporating organic dairy manure and using biodynamic preparations. Our biodynamic composts are Demeter® certified. Initially a biodynamic Starter Compound is sprayed on the compost, which is then composted in windrows for about 6 weeks. Our finished Biodynamic Compost is then placed in a static pile where the preparations 502-507 are applied in designated locations. The preparations are used in homeopathic quantities. The compost is cured for at least 4 months. The preparations are intended to help moderate and regulate biological processes as well as enhance and strengthen the life (etheric) forces on the farm. Sonoma Biodynamic Compost, dark and well decomposed, is ideal for grape growing, fruit trees, shrubs, natives and other plants that require low nitrogen. Biodynamic Hi-Test Compost, with a higher nitrogen level drived from chicken feathers, is ideal for vegetable crops and other heavy feeders.

Sonoma Biodynamic Compost
Quantity (Screened) Price
1-12 Cubic Yards $39.00/Cubic Yard
13-24 Cubic Yards $38.50/Cubic Yard

Biodynamic Hi-Test Compost
Quantity (Screened) Price
1-12 Cubic Yards $42.00/Cubic Yard
13-24 Cubic Yards $41.50/Cubic Yard

Traditionally Biodynamic compost is made on the farm. We do provide small amounts of Biodynamic Composts on a retail basis, however for any larger quatities the compost is cured in location at the end-user. Our pricing reflects two options of curing. You can purchase and apply the Biodynamic Preparations yourself or we can manage this for you. Please click here to view the full pricing chart for Biodynamic Compost.

To Top


Vineyard Mulch, Screened (Organic)
Vineyard MulchAn affordable, organic alternative to expensive bark products, Screened Vineyard Mulch provides great background color and texture in landscaping applications. It suppresses weeds, conserves moisture, moderates soil temperatures, and controls erosion.
(Click picture to enlarge)

Vineyard Mulch undergoes a brief composting process at over 131°F that renders it virtually free of weed seeds and plant pathogens. As it slowly breaks down, it provides the organic matter, nutrients and microbes that help plants thrive.

Worms thrive in soils that have a generous layer of Vineyard Mulch. Their tunneling activities allow oxygen to get to plant roots and their castings provide a beneficial nutrient input.

Fungi are prolific in mulches since they are working hard to break this material down. This fungal activity plays a crucial role in improving soil structure by aggregating the soil. Occasionally, during the wet season, these fungi make their presence known by producing fruiting bodies: mushrooms. This a natural occurance, inherent to decomposition. For those who do not appreciate those 'guests' can simple rake the mushrooms and they will disappear rapidly.

Vineyard Mulch is ideal for the demanding needs of North Coast grape growers. It's particularly suited for use on steep, hillside vineyards and when properly applied will reduce soil loss from erosion by up to 95%. It's easily applied by hand or with a tractor pulled spreader.

CDFA OMRI ListedVineyard Mulch is listed by the Organic Materials Review Institute (OMRI) and the California Department of Food and Agriculture (CDFA) for use in organic production (See label).

Quantity (Screened) Price
1-12 Cubic Yards $15.00/Cubic Yard
13-24 Cubic Yards $14.50/Cubic Yard
25-100 Cubic Yards $14.00/Cubic Yard
101-250 Cubic Yards $13.50/Cubic Yard
251-500 Cubic Yards $13.00/Cubic Yard
501+ Cubic Yards $12.00/Cubic Yard


To Top


Path Mulch
Path MulchThe economic, environment friendly substitute for expensive landscape barks. Made from recycled wood that’s ground and screened, Path Mulch is long-lasting walk-on mulch that will suppress weeds, conserve moisture and keep dirt and mud out of your house. It has a texture and color that work well with vivid garden colors. Landscapers specify Path Mulch when a neat appearance or distinctive border is desired.
(Click picture to enlarge)

Being made from recycled wood, even though we have an aggressive metal removal program, Path Mulch may contain an incidental number of nails. Recycled wood includes OSB and plywood. No pressure treated and painted wood is allowed. Please use in appropriate applications.

Quantity (Screened) Price
1-12 Cubic Yards $9.50/Cubic Yard
13-24 Cubic Yards $9.25/Cubic Yard
25-100 Cubic Yards $9.00/Cubic Yard
101-250 Cubic Yards $8.75/Cubic Yard
251-500 Cubic Yards $8.50/Cubic Yard
501+ Cubic Yards $8.25/Cubic Yard

To Top


Feather_Lite Amended Soil (Organic)
Feather-Lite Amended SoilPlant directly into Sonoma Feather-Lite Amended Soil. It's great for filling raised beds, replacing poor quality soil, adding elevation or leveling a project site, or filling in behind a retaining wall.
(Click picture to enlarge)

Sonoma Feather-Lite is a good looking blend of clean soil and Mallard Plus. You’ll find the high mineral content of the soil, and the rice hulls in the Mallard Plus, make for a growing medium that will last longer and decompose less than materials comprised of all organic matter. The feather component in the Mallard Plus provides the nitrogen boost to get plants and turf growing to your expectations.

CDFA OMRI ListedSonoma Feather-Lite Amended Soil is listed by the Organic Materials Review Institute (OMRI) and the California Department of Food and Agriculture (CDFA) for use in organic production (See label).

Quantity (Screened) Price
1-12 Cubic Yards $32.00/Cubic Yard
13-24 Cubic Yards $31.00/Cubic Yard
25-100 Cubic Yards $30.00/Cubic Yard
101-250 Cubic Yards $29.50/Cubic Yard
251-500 Cubic Yards $29.00/Cubic Yard
501+ Cubic Yards $28.50/Cubic Yard

To Top


Compost Blends
You have specific needs for oyster shell, greensand, worm castings, etc. to apply directly with your compost? Sonoma Compost can make your custom blend. You may order the amendments from your supplier and have it delivered to Sonoma Compost. A blending fee of $5.00 per finished cubic yard applies, minimum blending fee $50.00.

You can save labor and get a more even application of amendments when you blend them all together with your compost before application. With one application all of your amendments are in place.

Please allow up to one week for us to prepare your blend from when you have the amendments delivered.


To Top


Deck Mix
The ultimate affordable soil amendment, Deck Mix is a blend of all our products that occurs when we sweep our loading area. You'll find Sonoma Compost, Organic Hi-Test Compost, Mallard Plus, Feather-Lite Amended Soil, Vineyard Mulch and Path Mulch in this blend. Use Deck Mix as a mulch or amendment for flowers, shrubs and other ornamentals. Great as a tree mulch too!

Not recommended for veggies. Available from our retail site only as available, no reservations accepted. Supply is limited.

Price: $7.00/Cubic Yard


To Top


Cancelation/Refund Policy
After you place an order you can always cancel at no cost as long as your delivery has not started yet. You will not be billed. Please cancel your orders no later than 2 hours before your scheduled delivery. Sonoma Compost strives to have happy customers. If you are not satisfied please let us know. If the wrong product has been delivered, we will gladly replace the order with the right product. If our product did not perform as it should we will replace it or give you a refund. We will always evaluate the propblem you report and do our best to find a solution.


To Top

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