FOR USE ON: Use Garden Gypsum to help loosen heavy clay soil for better plant root growth. Also helps cure turf burns from Winter ice-milter salts and pet spotting CONTAINS: 100% All-natural mined gypsum with no fillers or additives. Pelletized for easy application WHEN / HOW TO USE: Use any time in growing season. Sprinkle on the surface of the soil or use a drop or broadcast spreader. FOR ORGANIC GARDENING: Garden Gypsum is approved for organic gardening; It is a registered Organic Input Material meaning it meets all requirements for organic production MADE IN THE USA: Product of the Espoma Company. The leader in natural organics since 1929