Nutri-Mulch is a natural compost perfected through over 20 years of research and testing. This product provides nutrients which slow release providing longer plant feeding than synthetic fertilizer. In addition, Nutrimulch will loosen tightly bound particles in clay improving root structure, water –drainage and air penetration; no need to purchase other products for this purpose. —Wood shavings remain in the compost decompose, which, aided by the abundant, available nitrogen does not compromise plant nutrition.