What is the primary purpose of mulching in landscape management?

The primary purpose of mulching in landscape management is to control weed growth and retain moisture. Applying mulch to the soil surface creates a physical barrier that suppresses the emergence of weeds by blocking sunlight and preventing their seeds from germinating. This contributes to a healthier garden by reducing competition for nutrients and water from weeds.

Additionally, mulch plays a crucial role in moisture retention. It reduces evaporation from the soil, helping to keep the soil consistently moist for plants, especially during hot, dry seasons. This is essential for plant health and can lead to reduced irrigation needs, thereby saving water.

While improving soil fertility, enhancing visual aesthetics, and preventing insect infestations can be associated benefits of mulching, they are not its primary purpose. For instance, certain types of organic mulch can contribute to soil fertility as they decompose, but the immediate functions of weed suppression and moisture retention are more critical in effective landscape management.