what is mulch used for

Mulch is a layer of material placed over the soil and around plants to suppress weeds, retain moisture in the soil, and regulate soil temperature. It can also prevent soil erosion, reduce soil compaction, and act as a physical barrier to drying winds and direct sun. Mulch can be organic, such as grass clippings, straw, bark chips, and leaves, or inorganic, such as rocks, gravel, and plastic. Organic mulches are best for vegetable gardens, while inorganic mulches are typically used in gravel gardens. Mulch can also contain nutrients, acting as slow-release plant food. Mulching is one of the simplest and most beneficial practices you can use in the garden. However, it is important to use the right type and amount of mulch, as too much mulch can be damaging to trees and plants.