Coast of Maine Stonington Blend Organic All Purpose Planting Mix 1.5 ft³Growers have discovered the tremendous results of using Coast of Maine Stonington Blend Growers Mix. A complex super soil designed for high performance growing in containers and large pots. Developed for professional and amateur growers, this blend incorporates mycorrhizal fungi, kelp, fish bone and alfalfa meal, as well as worm castings, peat, coir and lobster compost. When growing, using 15 gallons of Stonington Blend Growers Mix. Super soil no need