Creeping Phlox - After the blooming period, prune back the foliage of creeping phlox plants. This "pinching" will encourage foliage to become denser, thereby making your creeping phlox plants a more attractive groundcover for the summer months.
Phlox paniculata 'David' 'David' is a garden phlox cultivar that typically grows in an upright clump to tall. Long mid to late summer bloom sometimes extends into early fall. Problems By reputation, 'David' has good resistance to powdery mildew.