Organic Mulches for Gardens and Landscape Plantings Horticulture Organic Mulches for Gardens and Landscape Plantings Organic mulches serve several important functions in gardens and landscape plantings. Mulches help control annual weeds and conserve soil moisture. They reduce soil erosion by reducing the impact of raindrops and water runoff.
Mulches can help reduce the severity of some diseases, such as blights on tomatoes.
They help keep fruits, vegetables, and flowers free of rain spattered soil. They also reduce fruit and vegetable spoilage. Organic mulches moderate soil temperatures. During the hot summer months, they help maintain cooler soil temperatures. Mulches also provide an attractive background for landscape plantings.