Western Mining and Minerals Organic Lawn and Garden Gypsum 40 lbBeneficial in loosing clay soil, counteracts salt damage and improves soil conditions for deep root growth. Improves soil conditions for deep root growth Loosens heavy clay soil OMRI approved Features Assembly Code N Country Of Origin US Delivery Offered N Department Number 7 Display Only Item N Dollar Velocity Code A Feature 10 Text Feature 1 Text Improves soil conditions for deep root growth Feature 2 Text Loosens heavy clay soil Feature 3 Text OMRI