WHAT IS MULCH?
Mulch is any type of material that is spread or laid over the surface of the soil as a covering. It is used to:
To retain moisture in the soil
To suppress weeds
To keep the soil cool
To make the garden bed look more attractive.
Organic mulches also help improve the soil's fertility, as they decompose
HOW DOES MULCH HELP PLANTS GROW?
Mulch may make a garden look tidy, but the work it does to improve the growing conditions for plants is what makes it most appealing. Those layers of bark or pine straw also improve soil texture, suppress weeds, and conserve water.
WHEN SHOULD YOU APPLY MULCH?
For most mulches and soils, start with a layer 3-4 inches deep. Use newspaper as a decomposable barrier to keep weeds at bay. If the soil is dry, water it before applying mulch to pull weeds easier. Apply mulch just about anytime, remembering that if you mulch early in the spring, the ground might be slow to warm.