Earthgro® GROUNDCOVER BARK is an all-natural, premium quality bark. It has a minimal wood and high bark content, a consistent size, and a uniform color and appearance. It will not blow away or wash away easily. When spread properly, it will create an attractive background around flowers, trees and shrubs, or add a warm, textured accent to walkways, patios or foundations. Not only does it beautify, but it helps discourage weeds, moderate root damaging heat and cold in surface soil, prevent soil erosion, inhibit quick water run-off, prevent soil compaction and retain moisture in the soil.