Part shade - full sun; moist, rich soil; terminal spikes of white-pink ‘turtlehead’ 1.5” long flowers; plants are 3’-4’ tall with toothed leaves; thrives on pond and stream banks and in flower gardens with a little moisture; blooms July-Sept; Host for the Baltimore Checkerspot Butterfly; zones 3-8; Mixed eastern ecotypes. // Seed packet: about 50 seeds. Germination requirements: 60 cold-moist stratification.