Loose terminal spikes of fringed ½" yellow lemon-scented flowers July through October, fragrant large toothed oval leaves (6 to 10" long), host plant to several moths including the Yellow Stoneroot Borer Moth (Papaipema astuta), grows from woody rootstock, likes rich woodland soil.
Plant Hardiness Zones: 4a-8b
Native Range: s. QC & ON, south to n. FL & e. LA. Rare in WI
Germination - Easy: Cold stratify 10 weeks