Creeping Phlox is as it sounds, a ground-covering evergreen native with paddle-shaped leaves that form 1-2 inch mats in moist, acid soils. The flower spikes shoot up above these mats on thin 8-inch stems for a wonderful effect. Best grown in humusy, medium moisture, well-drained soil in full sun to part shade. Good shade tolerance. Prefers acidic, rich, organic soils with continuous, even moisture. Self-seeds in optimum growing conditions. Spreads by stolons to form large colonies in the wild as both the common and species names suggest.