Wonder Soil® is a lightweight soilless growing medium made from premium coco coir with guaranteed low salts. It promotes a stronger root system, faster germination and enhanced plant growth. Watch it expand up to 7 times its volume when water is added! The inclusion of water saving polymers allows a savings up to 50% in water, labor and energy for up to 4 years. Wonder Soil products promote exceptional gardening success for both the novice and professional. Available in a variety of sizes and formulas for different gardening applications.