Phlox ‘Opening Act White’ has white flowers that reach 18 -20 inches high. It begins blooming in early summer before the more common garden phlox and continues well into the summer. The flowers are lightly fragrant and attractive to butterflies and hummingbirds. It is hardy in zones 4 - 8. The genus name is from the Greek word phlox meaning flame in reference to the many bright colors of some varieties.