Small Wood Bark is a fir species. Our wood bark is a great option for ground cover around trees, plants and shrubs. It will retain soil moisture in the summer and will protect roots from freezing in the cold winter and frosty fall. It covers a larger surface area than traditional shredded mulch. It isn’t blown around by winds like lightweight mulches. Using bark mulch benefits the environment because waste wood goes into the garden instead of a landfill.