Woodland Phlox is perfect phlox for shady areas, and blooms for nearly a month in late spring and early summer. The fragrant flowers come in shades of pale lavender to blue, and occasionally pastel pink or white. The five-petalled tubular flowers are attractive to butterflies, clearwing moths, and hummingbirds.   The blooms are followed by rounded green fruits that eventually dry to seed capsules which split open to release the small black seeds. Woodland Phlox does self-sow, and the seedlings are easily transplanted. The flowering stems will die-back after the plant has produced seed, leaving a mound foliage to produce and store energy for the following year.