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Phlox divaricata ssp. laphamii (Wood) Wherry
Lapham's phlox, Blue phlox, Sweet william
USDA Symbol: PHDIL6
USDA Native Status: Native to U.S.
Lapham’s Blue Phlox has semi-decumbent stems that send up erect branches 12-30 in. Loose clusters of showy, fragrant, purple flowers, with a dark eye, occur at the top of these stems. The leaves on decumbent stems are broader than those on flowering stems.
Plant CharacteristicsDuration: Perennial Habit: Herb Flower:
Fruit: Size Class:
Bloom InformationBloom Color: Pink , Blue , Purple
Bloom Time: Mar , Apr , May , Jun , Jul
AL , AR , FL , GA , IA , IL , IN , KS , KY , LA , MD , MN , MO , MS , NC , NE , OK , PA , SD , TN , TX , VA , WI , WV Native Distribution:
WI to e. NE, s. & e. to FL & e. TX Native Habitat:
woods USDA Native Status: L48(N)
Growing ConditionsLight Requirement: Part Shade
Soil pH: Circumneutral (pH 6.8-7.2)
Soil Description: Humus-rich, moist soils.
Conditions Comments: Blue phlox self-sows readily forming natural drifts.
PropagationDescription: Propagate by division, seed or softwood cuttings (rooted stem) taken in late spring.
Seed Collection: Not Available
Seed Treatment: Cold-moist stratification.
Commercially Avail: yes
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Record Modified: 2009-04-19
Research By: TWC Staff