Phlox paniculata 39david39 is a famous variety of perennial phlox an excellent choice for cottage or wildlife gardens and the well45deserving owner of an rhs award of garden merit 40agm41 the hardy perennial produces large clusters of white blooms in july august and september these flowers are loved by pollinators for their rich nectar and admired by gardeners for their sweet scent the plant39s foliage has a clumping habit providing great ground cover in damp sunny or se