The flowers are 1.5–2.5 cm (0.6–1.0 in) in diameter, often strongly fragrant and borne in summer through fall (autumn).

[5] 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.

In hot, dry areas they are sensitive to powdery mildew, and affected stems should be removed immediately.

The following have gained the Royal Horticultural Society's Award of Garden Merit: The plant has been used medicinally, with the leaf extract serving as a laxative and to treat boils.