Texas FFA Nursery Landscape Practice Exam

What is the primary purpose of using mulch in landscaping?

1. To attract pests to plants

2. To maintain soil moisture and suppress weeds

3. To improve soil drainage

4. To provide aesthetic appeal

The correct answer is: To maintain soil moisture and suppress weeds

The primary purpose of using mulch in landscaping is to maintain soil moisture and suppress weeds. Mulch acts as a protective layer over the soil, which helps reduce evaporation of water from the soil surface. This is especially beneficial in hot or dry conditions, where maintaining adequate moisture for plant health is crucial. Additionally, by covering the soil, mulch inhibits the growth of weeds, as it blocks sunlight and prevents weed seeds from germinating, leading to a healthier landscape with reduced competition for nutrients and water. While mulch can also enhance the visual appeal of a garden, its most critical functions lie in its ability to conserve moisture and manage weed growth, making it an essential component in effective landscape management.