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Plant Database

Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

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Phlox divaricata ssp. laphamii (Lapham's phlox)
Cressler, Alan

Phlox divaricata ssp. laphamii

Phlox divaricata L. ssp. laphamii (Alph. Wood) Wherry

Lapham's Phlox, Blue Phlox, Sweet William

Polemoniaceae (Phlox Family)

Synonym(s): Phlox divaricata var. laphamii

USDA Symbol: PHDIL6

USDA Native Status: L48 (N)

Lapham’s Blue Phlox has semi-decumbent stems that send up erect branches 12-30 in. Loose clusters of showy, fragrant, usually 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.

 

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Plant Characteristics

Duration: Perennial
Habit: Herb
Fruit Type: Capsule
Size Notes: Up to about 30 inches tall.

Bloom Information

Bloom Color: White , Purple , Violet
Bloom Time: Mar , Apr , May , Jun , Jul
Bloom Notes: Purple to lavender to violet, occasionally white.

Distribution

USA: 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: Moist, deciduous woods

Growing Conditions

Light 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.

Propagation

Description: Propagate by division, seed or "softwood" cuttings (rooted stem) taken in late spring.
Seed Treatment: Cold-moist stratification.
Commercially Avail: yes

Bibliography

Bibref 318 - Native Texas Plants: Landscaping Region by Region (2002) Wasowski, S. & A. Wasowski

Search More Titles in Bibliography

Web Reference

Webref 23 - Southwest Environmental Information Network (2009) SEINet - Arizona Chapter

Additional resources

USDA: Find Phlox divaricata ssp. laphamii in USDA Plants
FNA: Find Phlox divaricata ssp. laphamii in the Flora of North America (if available)
Google: Search Google for Phlox divaricata ssp. laphamii

Metadata

Record Modified: 2023-02-22
Research By: TWC Staff

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