Vernonia gigantea. A native perennial growing up to 8' tall in moist, rich soils. Stiff stems bear large (8-10" long) leaves which are serrated. Lovely flowers have dense, fluffy, purple-red center disks without ray petals. Attracts pollinators. Great massed, in borders, meadow, wildflower garden and naturalized. Grows 5-8' tall by 3-6' wide. Blooms late summer to fall. Full sun to part shade. Plant in moist, well-drained soil. Zones 5-8.