About
St. Louis Composting operates the largest composting facility in Missouri and is the largest composter in the St. Louis region. Hobbyists, serious gardeners and professional landscapers alike come to St. Louis Composting for the widest array of compost, topsoil and soil blends, mulch and firewood in the St. Louis region. Hours of Operation: Monday-Friday 7am-5pm Call For Weekend Hours Payment Methods: Cash, Checks, Debit, MasterCard and Visa AMENITY Delivery Available.