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P. stylosa works well as a loosely branched but thick mat that shades out weeds.

Rubiaceae

The only species of its genus, P. stylosa grows best in cooler climates in well-drained soil to Zone 5. Small, pubescent leaves are whorled on long stems that form a mat. Small pink flowers bloom in globes at the tips of the stems.

Plant Type: perennial

Plant Form or Habit: rounded/mounded

Plant Use: Rock gardens, in walls, as a ground cover

Propagation:

seed
division
stem cuttings

Flower Color:

pink

Bloom Period:

mid-spring
late spring
early summer
late summer

Width: Minimum: 18 inches     Maximum: 36 inches

Foliage Texture: fine

USDA Hardiness Zone: 5

Water Requirements: average

Additional Comments: A short-lived perennial, P. stylosa readily reseeds itself. It also may be propagated via division or cuttings. Plant in an open space to avoid overcrowding. Works well in keeping weeds out. After taking a break in July, Phuopsis blooms again in August.