A plant exhibiting a growth habit where stems or foliage spread horizontally, forming a relatively open and airy network across the soil surface, and persisting for more than two years, exemplifies a specific horticultural category. Examples include certain varieties of thyme and creeping phlox, which spread to cover ground while maintaining discernible gaps between individual plant parts. The term itself consists of descriptive elements: “loosely matted” refers to the spreading, interconnected nature of the plant, while “perennial” indicates its ability to live for multiple growing seasons.
The value of such plants lies in their usefulness as ground cover, erosion control, and aesthetic enhancements in gardens and landscapes. Their growth pattern can effectively suppress weed growth, reduce soil erosion on slopes, and provide visual appeal with their foliage and flowers. Historically, these plants have been employed in traditional gardens for their practical benefits and ornamental qualities, often used to soften hardscapes or fill spaces between pavers.
