What are the roles of ground cover plants?

Ground cover plants play a vital role in landscaping and gardening primarily by suppressing weeds and preventing soil erosion. When planted densely, these low-growing plants effectively cover the soil surface, limiting the amount of sunlight that reaches weed seeds and reducing their ability to germinate and grow. This natural suppression of weeds helps maintain the health and aesthetics of the garden, as it minimizes competition for nutrients and water.

Additionally, ground cover plants contribute significantly to soil stability. Their root systems hold the soil in place, which is especially important on slopes or in areas prone to erosion. By covering the soil, they also reduce the impact of rain on the soil surface, further preventing erosion. Together, these functions create a healthier environment for both the plants in the garden and the soil itself.

While ground cover plants can offer other benefits—such as attracting beneficial insects or even providing edible options—these functions are not their primary roles in landscaping. The effectiveness in controlling weeds and erosion remains central to why ground cover plants are used in garden designs.