What primary function does Thymus serpyllum serve in gardens?

Thymus serpyllum, commonly known as creeping thyme, serves primarily as a ground cover in gardens. This plant is valued for its low-growing, spreading habit, which makes it ideal for filling in open spaces where grass might struggle to grow or where a more decorative alternative is desired. As a ground cover, it helps to suppress weeds, retain moisture in the soil, and can provide a beautiful, aromatic mat of foliage with small flowers that attract pollinators.

While it can also be utilized for culinary purposes, serving as an edible herb, the primary function of Thymus serpyllum is its ability to effectively cover ground and enhance landscape aesthetics and functionality. This makes it an excellent choice for rock gardens, pathways, or erosion control in sunny areas. The other functions, such as invasive control or medicinal use, are secondary and could vary based on the specific gardening context.