Family: Polemoniaceae

Scientific Name: Phlox divaricata ssp laphamii

Common Name: Blue woodland phlox, Lapham's Phlox

Description

Woodland Phlox (Phlox divaricata ssp laphamii) is a good plant for the shade, moist woodland areas of the garden. Nice light blue flowers.

PronunciationPhlox divaricata is common throughout eastern North America east of the State of Missouri, but P. d. var. laphamii is the common form in Missouri. Var. laphamii is primarily distinguished from the species by having darker blue flowers with unnotched petal
Plant TypePerennials Hardy, Wild Flowers
Hardiness Zone4-9
Sunlightshade, part sun
Moistureaverage, moist, never dry
Soil & Siteaverage, humus rich
Flowerslight blue flowers, slightly fragrant, blooms last two weeks in June (Boerner Botanical Gardens plant database)
Leavesdark green oblong leaves, can be semi-evergreen
Stemscreeping rhizomes, trailing stems root at the nodes where they touch the soil, hairy and sticky
Rootsshallow root system
Dimensions1 foot tall by 1 foot spread
Maintenancemildew can be a problem in hot humid weather
Propagationdividing the clumps, dividing the small rooted sections, tip cuttings
Native SiteNative to Missouri
Misc FactsThe genus name is derived from the Greek word phlox meaning flame in reference to the intense flower colors of some varieties. Genus name means spreading. The variety laphamii is primarily distinguished from the species by having darker blue flowers with unnotched petal.
Notes & Reference#06-Perennials for the American Gardens (Clasusen and Ekastro), #36-Encyclopedia of Perennials (Christopher Woods) #40-Herbaceous Ornamental Plants (Steven Stills)
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