Soil Amendment (SA) is a low-cost soil conditioner that adds organic matter to soil at new home sites, where compaction and removal of topsoil is common. This material is perfect for conditioning heavy clay and as a pre-plant conditioner for new lawns. SA is particularly suited as a long-lasting soil amendment for sandy soils. Because this product comes from 100 percent recycled wood and tree trimmings, it qualifies toward LEED certification points.