It's hard to believe that this small tile, only 8 inches by 8 inches, creates 10 full quarts of fine potting soil! Our potting soil is made from the husk of coconuts and is used worldwide in professional horticulture and agriculture! Just open the sealed bag and add water. The SpongEase Potting mix will expand to almost filling the bag! Fluff with a trowel or your hands and use in your pots or garden. Add fertilizer or mix with compost to provide nutrients for your plants!