Espoma Soil Perfector 30 Lb. 12 Sq. Ft. Coverage Organic Soil Conditioner

All natural soil conditioner that contains kiln fired slate. When added to soil it permanently improves heavy clay soils, allowing for better drainage, nutrient penetration, and root growth. One time application that will not break down. Ideal to use for flowers, vegetables, trees, shrubs, and potted plants. USDA (United States Department of Agriculture) Certified Organic.