Soil Moist polymers reduce your plant waterings by 50%, reduce transplant shock and soil compaction and is effective in the soil for 3-5 years. It is an effective water management aid that is ideal for interior and exterior plantings such as for trees, shrubs, containers, baskets, flower beds, vegetables and turf. Soil Moist acts as a form of insurance for the plant and is environmentally friendly. Mix contents with approximately 1 gallon of water, dip roots, then plant. Each packet will treat approximately 300-500 hundred seedlings, but will vary depending on size of trees.