Count on garden phlox (Phlox paniculata hybrids) to provide a colorful summer display in perennial gardens, blooming as much as six weeks or more. These perennial flowers are often used as background plants in narrow borders or in groups between taller and shorter plants in a wide border. Some cultivars begin blooming in mid-summer; others not until late August. Garden phlox is a clump-forming, upright plant which produces large, showy flower clusters in summer. Plants are generally 2 to 4 feet tall.
Garden phlox are available in a wide range of pink, rose, red, lavender, purple, and white, along with bi-colors that have an "eye" in the center of each flower or a contrasting margin. Cultivars range from softest pastels to electric, "knock-your-socks-off" brilliant blooms. In addition to their visual appeal, many tall garden phlox are sweetly perfumed.