A natural wood product with water based colourant. It is safe for the environment, people and pets. Enviro-Mulch will maintain its colour longer than shredded bark and with a light raking its appearance is refreshed. As mulch decomposes, breaks down and is exposed to the elements, it will need to be topped up to maintain coverage. Mulch is a wonderful way to create different focal points throughout your yard, adding it to your garden, yard decoration, or tree rings.