Frostweed

Frostweed, also called White Crownbeard, is a statuesque native perennial found in open woods and moist meadows across the Southeastern and Mid-Atlantic U.S. Reaching heights of 4–6 feet, it produces flat-topped clusters of white ray flowers in late summer and into fall—just when many other flowers are fading. These blooms attract a variety of late-season pollinators, including monarchs fueling up for migration. After frost, its stems create “frost flowers”—delicate ice ribbons that curl from the base like spun glass, making it a standout even in dormancy. Frostweed spreads by seed and rhizomes and is best suited for naturalistic plantings or the back of large garden beds where it has room to roam.

• Cut back stems in late winter or early spring, after frost flower formation.
• May spread aggressively in rich soils—thin or divide as needed.
• Tolerates part sun but flowers best in full sun with medium to moist soils.