Showy large 4-6” flattened clusters of small white flowers offset by large sterile flowers at the margins from June to September, large oval leaves up to 8” long, good rain garden plant, tolerant of poor soil (including clay), spreads by root suckers to form colonies, blooms on new wood, can be cut back to 12” tall each year and grown more like an herbaceous perennial to increase flowering and bushiness.
Plant Hardiness Zones: 4a-9b
Other names: Sevenbark
Native Range: VT south & west to e KS, and south to LA & the FL panhandle. Rare in FL & NY
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