Phlox paniculata - Garden Phlox is a clump-forming, upright plant which produces large, showy flower clusters. Plants are generally 2 to 4 feet tall. Tall garden phlox is an herbaceous perennial that returns consistently year after year from a thickened root stock.
Phlox paniculata grows well in moderately rich fertile, medium moisture, well-drained soil. Rich, moist, organic soil and mulch are beneficial as it is intolerant of drought. It will thrive with bi-monthly fertilizing and consistant moisture levels. To avoid powdery mildew provide ample air circulation around the plants and thin them out periodically
Phlox paniculata is unequaled for showy blooms over a long period throughout the summer. Though they are some of the most popular perennials available, they do require some maintenance to sustain their health and vigor.
Deadheading faded flower panicles may prolong blooms into early fall. Their fragrance attracts hummingbirds and butterflies. A garden mainstay, excellent for perennial borders, mass planting, corners and for cut flowers. Phlox is a member of the Polemoniaceae family and is native from New York to Georgia, and west to Arkansas and Illinois.
PLANTING: Set plants 12 to 15 inches apart to allow for good air circulation. Choose a location in full sun or very light shade, and where the soil is moisture-retentive but well-drained, deeply worked and enriched with organic material; paniculata are heavy feeders.
MAINTENANCE: Water plants during periods of drought; summer mulch helps conserve moisture. To promote vigorous growth, pinch out weaker shoots periodically during the growing season. When dividing (every three+ years), discard weaker shoots before replanting. At the end of each season, cut plants back to the ground, removing and discarding dead foliage. To naturally control mildew, avoid overhead watering and planting against moisture-retaining hedges, fences or walls.