Vigorous and free-flowing, Phlox paniculata 'David' features fragrant, pure white flowers densely arranged in pyramidal clusters atop sturdy stems. Summer Phlox is a garden classic considered by many as the backbone of summer borders, whether as single specimens or in groupings. Their full, round heads sway attractively in the breeze, adding a gentle fragrance that is always welcome. Rich in nectar, Summer Phlox is adored by hummingbirds, butterflies and birds.