Boltonia caroliniana occupies a narrow ecological niche: the saturated margins of swamp forests, floodplain clearings, and wet roadsides of North Carolina, South Carolina, Virginia, Mississippi, and Georgia. Within North Carolina its stronghold is the Piedmont and northern Coastal Plain, and it is the kind of plant you find by knowing where to look — a tall, bushy perennial of four to six feet with long, narrow, waxy leaves that glint in low-angle light, topped in late summer and fall by a profusion of daisy flowers in white to soft lilac with clear yellow centers.

Named for James Bolton, an 18th-century English botanist, and for the Carolinas it calls home, this species earns its place in a native garden through ecological timing as much as beauty. Its late bloom period arrives precisely when migrating butterflies need nectar resources, and the bushy form — upright and ascending — makes it a structural presence at the back of a border or along the edge of a rain garden. It asks for average to fertile moist soil in full sun with some shade tolerance, and it will reward a good wet spot with exactly the kind of generous, long-lasting bloom that makes autumn feel like a season worth designing for.