Fall phlox is an erect, clump-forming perennial with fragrant pink or purple flower panicles in summer and fall. Give it full sun or part shade and consistently moist, fertile soil, and it will be a reliable border plant.
Family
Polemoniaceae (Polemoni family)
Grows as
Perennial
Light
Full sun, Part shade
Water
Keep soil evenly moist, especially during dry spells and bloom, and water at the base to reduce mildew risk.
Soil
Fertile, moist, well-drained loam enriched with compost.
Temperature
Hardy in cold winters (roughly USDA zones 4 to 8); protect young plants from late frost.
How easy
Easy
Native range
NC. & E. U.S.A.
Climate
temperate
About
Phlox paniculata is a species of flowering plant in the phlox family (Polemoniaceae). It is native to parts of the eastern and central United States. It is extensively cultivated in temperate regions as an ornamental plant and has become established in the wild in scattered locales in other regions. Common names include fall phlox, garden phlox, perennial phlox, summer phlox, and panicled phlox.
How to grow it
Phlox paniculata is grown largely for its showy fragrant flowers in high summer. It requires a sheltered spot with full sun or partial shade, in fertile moist soil. Plants may be propagated by division or root cuttings in autumn, or by basal cuttings in spring.
Plants make excellent cut flowers. In hot, dry areas they are sensitive to powdery mildew, and affected stems should be removed immediately.
Where it grows
Fall phlox is native to parts of the central and eastern United States. It occurs as an introduced species in other parts of the United States, Canada,, Europe, and Asia. In the Chicago Region, it is questionably native, or native populations may have all been destroyed: "populations in our area appear to be escapes from gardens to nearby woods and waste ground, which no doubt accounts for all collections since 1945".
Uses
The plant has been used medicinally, with the leaf extract serving as a laxative and to treat boils.
Text excerpted from the Wikipedia article Phlox paniculata by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.