Mulching is one of the most effective methods of weed control. Mulching is one of the solutions that we typically provide for our clients who are experiencing problems with weeds in their shrub and flower beds. Generally speaking, mulch is a material that is applied onto the soil that serves a number of purposes. Mulching inhibits the growth of weeds, but is also used as a way to increase the concentration of nutrients in the soil. There are both organic and synthetic forms of mulch. Mulching around trees allows them to stop competing with grass. Mulch will help reduce pests and disease in the garden. Cedar mulch has natural oils that deter insects. And it encourages earthworms!!