We recommend that you blend Farm Compost into existing soils at a ratio of up to 50% compost to 50% existing soils. Or, you can use Farm Compost as a top dressing by applying 1-2 inches on top of your existing soil. This helps soil retain moisture and decreases the need for frequent watering while additionally preventing weed growth. We like spreading corn gluten or Preen (available at most garden centers) over the bed to prevent weeds from sprouting throughout much of the growing season. For new beds or filling in spots we recommend our pre-blended Supersoil which has a 50%-50% blend of our Farm Compost and sandy topsoil.