Smooth Purple Coneflower is a wildflower with a narrow native range — the Piedmont of North Carolina, South Carolina, Virginia, and Georgia — where it colonizes disturbed ground along roadsides and fire-cleared areas. It is federally listed as endangered, which gives growing it a weight beyond the ornamental. At up to five feet tall, it stands above most of its coneflower relatives, and the ray petals droop more pronouncedly than those of the more common Echinacea purpurea. Finches come reliably for the seeds; bees and other pollinators work the blooms through summer.

Despite its rarity in the wild, Smooth Purple Coneflower is not difficult in cultivation. It prefers full sun but tolerates partial shade, and once established it shrugs off drought, heat, and poor soils. It does best in neutral to alkaline soils with some calcium and magnesium — conditions that reflect its roadside and limestone-influenced native haunts. It spreads by both rhizomes and seed, so it will naturalize in a border or meadow given time. Deadheading extends the bloom but leaving seed heads benefits birds and supports reseeding.