There are a multitude of benefits to adding mulch in your garden. In the summer heat, mulch helps the soil hold moisture so you don’t have to water your garden as frequently. Soil tends to dry out and harden at a quicker rate in the hot sun. Mulch will help prevent this by protecting the soil from direct sunlight.
Mulch also prevents weeds. Adding mulch to your planting bed will block light from openings in the soil, consequently discouraging weed growth.