KELLOGG GARDEN ORGANICS AMEND garden soil for flowers and vegetables is designed to be mixed with your native soil for in-ground planting. Its nutrient rich formulation has added rice hulls and gypsum to help loosen compacted clay soils, making work easier in the garden…And who doesn’t want that, right? AMEND also improves soil drainage, making it easier for water to reach plant roots for healthier, more-lush growth.