Espoma Garden Gypsum 6 lb. Catalog Lawn & Garden Lawn & Plant Food Lime & Gypsum Espoma Garden Gypsum 6 lb. UPC : 050197022064 Manufacturer : Espoma Natural Gardening Solutions Description Espoma Garden Gypsum is an all natural mineral that can help loosen clay soils and repair damage from salt and pet urine. Rates Please contact us for current pricing and availability.