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 Materials Review Institute (OMRI) for use in organic production.

Organic HI-TEST Compost
All the benefits of Sonoma Compost but with higher nitrogen content from the inclusion of chicken feathers.
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Sonoma 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 for the heavy clay soils in Santa Rosa, Rohnert Park and Petaluma and will add moisture-holding capacity to sandy West County soils. It’s screened to approximately <½”.

Sonoma Organic HI-TEST is listed by the Organic Materials Review Institute (OMRI) for use in organic production.

Mallard Plus (Organic)
Although our Mallard Mulch (a blend of Sonoma Compost & Brown Rice) has been getting rave reviews for years, we’ve improved it and changed its name to Mallard Plus.
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We’re blending our Brown Rice with our Sonoma 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.

Mallard Plus is listed by the Organic Materials Review Institute (OMRI) for use in organic production.

Vineyard Mulch, Screened (Organic)
An 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.
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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.

Vineyard Mulch is listed by the Organic Materials Review Institute (OMRI) for use in organic production.

Path Mulch
The 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.
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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.

Feather-Lite Amended Soil (Organic)
Plant 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.
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Sonoma Feather-Lite is a good looking blend of 50 % clean soil and 50% Mallard Mulch. You’ll find the high mineral content of the soil, and the rice hulls in the Mallard Mulch, 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 Mulch provides the nitrogen boost to get plants and turf growing to your expectations.

Sonoma Feather-Lite Amended Soil is listed by the Organic Materials Review Institute (OMRI) for use in organic production.

Compost/Mined Lime Blends
All the advantages of our OMRI listed organic compost combined with the additional benefits of an OMRI listed mined limestone. The lime contains calcium, essential to making nutrients such as nitrogen, phosphorous and potassium available to plants. In addition, lime will correct acid soil conditions, which are common in high rainfall regions such as Sonoma County.

Compost and lime have been used for years by grape growers, organic farmers and backyard gardeners. By blending them, we make these two essential growing tools more convenient and easier to use.

Our compost/mined lime product is custom-blended in the specific ratios you require. Please order at least two weeks before needed. Truckload quantities only, please. Call for pricing.

Note: We can custom blend other minerals, such as oyster shell calcium, or gypsum with Sonoma Compost, our HI-TEST Compost or our Mallard Plus as well.

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: $5.00/Cubic Yard