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, Nutri-Mulch® 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.