We have
9 Locations in the St. Louis Metro Area

At  St. Louis Composting, we transform organic yard waste—branches, leaves, grass clippings, and more—into premium compost through a six-month static composting process. As the largest and most trusted compost provider in the St. Louis area, we’re committed to producing only the best. All our products are STA-certified, and we proudly offer OMRI-certified compost for organic gardening and farming.

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How We Make Our Premium Compost:

• Shredding Organic Materials: Shredding yard waste increases surface area, allowing decomposing organisms to work more efficiently.

• Balancing Carbon-to-Nitrogen Ratios: Carefully monitored ratios give microorganisms the balanced “diet” they need for optimal decomposition.

• Aeration for Ample Oxygen Supply: Regular aeration ensures a steady oxygen flow, creating an ideal environment for microbial activity.

• Moisture & Temperature Control: Consistent tracking of moisture levels and temperatures promotes effective breakdown, resulting in high-quality compost.

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Whether you’re looking for “bulk compost near me” or a few bags, St. Louis Composting provides an extensive selection of STA-certified and OMRI-certified compost, soil blends, and mulches. Visit one of our nine facilities in St. Louis, or order online for convenient delivery to your home or job site.