Do Phlox Flower Twice. See local frost dates Divide tall garden phlox every 2 to 3 years to ensure healthy and disease-free plants. Name Phlox Family Polemoniaceae Type perennial or annual.
8 to 12 inches tall and wide. Paniculata within that genus is valued for the long-lasting blooms it sports during the summer months. Removing phlox flowers actually encourages another bloom.
The garden phlox species P.
Creeping phlox looks better when trimmed after flowering. Both benefit from pruning once their flowering cycles complete. These perennials also attract hummingbirds and butterflies. Therefore ensure you divide your plant often for aeration to reduce or prevent this disease from affecting your creeping phlox.