Soil Moist stores over 200 times its weight in water and delivers it to your plants right when they need it. Johnson's recommends mixing Soil Moist into soil or potting soil for highly effective moisture management. It even reduces watering by up to 50%! Use it when planting trees, shrubs, containers, baskets, flower beds, vegetables, and turf. Formulated for indoor and outdoor use. Effective in soil for up to 5 years. Safe and non-toxic. 3 ounce package.