Common name: Wild Blue Phlox, Wild Sweet William, Woodland Phlox
Family: Polemoniaceae, Phlox
Height x width: 12-15" x 12"
Growth rate: moderate
Foliage: opposite, sessile, ovate to lanceolate, 2" long and ½-¾" wide, viscid-pubescent stems and leaves
Flowers: blue, convolute (twirled) buds, symmetrical flowers of 5 petals united to form a trumpet-shaped corolla tube; petals notched at tips in east and not in west; spring; slightly fragrant
Hardiness: 4-7
Soil: moist, organic
Light: part to full shade, will tolerate sun in North if sufficient moisture
Pests and Problems: powdery mildew if hot and humid, also feeding from small mammals
Landscape habit, uses: shade, natural or woodland gardens, front of northern borders
Other interest: native to the eastern U.S.
Other culture: leaves drop and plants become partly dormant in dry, sun or heat
Propagation: spring division, summer tip cuttings, seeds
Related Species:
P. stolonifera, Creeping Phlox, is also native to eastern woodlands
from Pennsylvania and Ohio southwards, with several commercially ornamental
cultivars.
Cultivars:
| Cultivar | flowers | other |
| 'Clouds of Perfume' | pale blue | fragrant |
| 'Dirigo Ice' | icy blue | 8-12" |
| 'Fuller's White' | white | 8-12" |
| var. laphamii | dark blue | 18" |
| var. laphamii 'Chattahoochee' | lavender blue | dark center, long bloom |
| 'London Grove Blue' | deep blue | fragrant |
| 'Louisiana' | purple blue | magenta eye |
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