The answer to 'how does mulching work' is that mulching is the process of applying a protective layer of material, such as wood chips, leaves, or bark, around the base of plants and over the soil. Mulch serves several important functions in landscaping and gardening.
First, mulch helps retain moisture in the soil by preventing evaporation. This reduces the need for frequent watering, especially during hot, dry periods. Mulch also helps suppress weeds by blocking sunlight and preventing weed seeds from germinating. Additionally, as the mulch decomposes over time, it adds valuable organic matter to the soil, improving soil structure and fertility.