Black Gold Waterhold Organic All Purpose Potting Soil 2 ft³Sun Gro all natural Waterhold Cocoblend Potting Mix naturally retains water and has added beneficial ingredients for optimal growth and aeration. Combination of coir (coconut fibers) and canadian sphagnum peat moss gives plants the advantage of water retention when exposed to constant exposure to heat, wind and sun Earthworm castings and perlite or pumice added to make this a high performance growing medium for all container gardening applications