Timberline All Natural Pine Bark Nuggets 2 Cubic Foot is the perfect backdrop for a beautiful and productive garden. Mulching helps your plants, shrubs and trees maintain healthy root systems by protecting them from heat, frost and cold. It also naturally helps retain soil moisture, saving you time and water. Mulch naturally suppresses weed growth which then allows more nutrients in the soil for supporting thriving healthy plants. The natural decomposition also builds soil condition. It aids in reducing soil erosion from wind and water. When applied properly, it is a low maintenance solution.