Phlox divaricata 'Blue Moon' (Woodland phlox) - Perennial - Zones 3-8, Height 12-18 in. Selected for outstanding flower color and very full flower petals, 'Blue Moon' bears many fragrant, 5-petaled flowers with the arrival of spring. Enjoy a knee-high sea of elegant, violet-blue flowers while simultaneously attracting hummingbirds & butterflies into your garden. Foliage is lance shaped and medium green. A long-lived, carefree native groundcover.