Helps produce the best growing media for most plants. Protects soils from drying and hardening. Saves on fertilizers by reducing nutrient leaching. One of the best substrates for growing media and potting soils, essential for healthy plants. Environmentally safe, 100 percent natural. Holds up to 20 times its dry weight in water. Aerates and breaks up heavy, clay soils. Encourages essential soil bacteria action.