Wildwood Organic Native Soil Conditioner is an ideal all-purpose mulch and soil amendment with 9 certified organic ingredients. It’s a fantastic mix for breaking up hard clay soils to improve drainage. It is specifically designed for mixing with and enriching your EXISTING soil. This mix contains: Organic Garden Compost, Organic Stutzman Chicken Compost, Gypsum, Oyster Shells, Organic Worm Castings, Dolomite, Kelp, Mycorrhiza, and Seabird Guano 0-10-0.