Organic mulches enrich the soil as they decay and provide a better environment for plant growth.

In mulching, the bare ground between plants is covered with a layer of organic matter like straw. Mulch comes in two fundamental varieties: organic and inorganic. Mulches derived from plant sources like compost, grass clippings, etc. are termed organic. When organic mulch decomposes, it improves the soil's fertility and the growing conditions for plants. Organically rich soils are simpler to till and are better suited for vegetable gardening. The soil becomes crumblier when organic material is added, especially in clay soils.