What is the primary benefit of mulch in gardening?

The primary benefit of mulch in gardening is its ability to conserve moisture and suppress weed growth. When applied to the soil surface, mulch acts as a barrier that reduces evaporation, helping to maintain the moisture levels in the soil. This is particularly important during hot or dry conditions, as it allows plants to access the water they need without frequent watering.

In addition to moisture conservation, mulch effectively suppresses weed growth. By covering the soil, it blocks sunlight from reaching weed seeds, making it more difficult for them to germinate and compete with garden plants for resources such as nutrients and water. This dual function of moisture retention and weed suppression contributes significantly to healthier plants and more efficient garden management.

While mulch can also provide some benefits related to soil quality, such as improving soil structure over time as it breaks down, its most immediate and practical benefits lie in moisture conservation and weed control.