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Custom Blended Soil Mixes
At North Bay Materials, we craft and deliver custom blended soil mixes designed for thriving gardens, raised beds, and landscape installations across Marin, Napa, Sonoma, and Solano counties. Each mix is carefully formulated using premium composts, organic fertilizers, and mineral amendments to ensure ideal balance, drainage, and fertility for every growing condition. Whether you need a lightweight Potting Mix for planters, a nutrient-rich Super Organic Mix for vegetables, or a structural Bioretention Soil Media (BSM) for stormwater projects, our locally blended soils are ready for fast, professional delivery straight to your home or jobsite.

Custom blended soil mixes are professionally formulated combinations of organic and mineral ingredients—such as compost, peat, rice hulls, pumice, gypsum, and natural fertilizers—designed to achieve specific performance goals for planting and landscape applications. Unlike basic topsoil or fill dirt, blended soils are engineered for optimal drainage, aeration, moisture retention, and nutrient availability. Each recipe is tailored to the needs of different environments—like raised beds, planters, vegetable gardens, or bioretention systems—ensuring plants receive the right balance of air, water, and fertility for healthy, sustained growth.
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