Creeping Phlox (Phlox subulata)

Phlox subulata, commonly called creeping or moss phlox, forms a low, dense mat of fine, needle-shaped green leaves. Its spring flowers can range from pink and lavender to reddish purple and white, so this species is useful where a broad carpet of color and evergreen-like texture are wanted. ## Garden character Use it along sunny paths, on a slope, in a rock garden, or at the front of a border where its spreading stems can knit together. Mature plants are generally about 6 inches tall and may spread 2 to 3 feet, although exposure and cultivar affect the outline. The flowers support pollinators, and the foliage offers cover between bloom cycles. [North Carolina State Extension](https://plants.ces.ncsu.edu/plants/phlox-subulata/) describes its mat-forming habit, native range, flower colors, and landscape uses. ## Growing conditions Choose full sun for the strongest bloom and provide sharply drained sandy, gravelly, or rocky soil. In hot, humid locations, some afternoon or dappled shade can help. Water during establishment; established plants tolerate dry periods better than many other phlox. The extension profile lists USDA zones 3 through 9. ## Maintenance After flowering, lightly shear or cut back the stems to keep the mat dense and encourage fresh growth. Avoid persistently wet soil, which can stress the crown; monitor for spider mites during hot, dry weather and leaf damage in humid, wet conditions.