Topsoil is the nutrient rich layer of soil that sits atop the subsoil and serves as the principal food source for our plants, flowers and lawns. The topsoil layer typically extends 2 inches under lawns and more than 12 inches under very fine vegetable and flower gardens. Topsoil can be purchased by the half- or full cubic yard. Though it can simply be applied as a layer over the existing soil with no pretreatment, for quality gardens designed for long-term cultivation, tilling the existing soil and then laying down the richer top soil may make for greatly improved soil conditions and therefore healthier, heartier plants. $25 / .5 CUYD
