Scientific Name Pronounciation:
Plant Hardiness Zones:
Plant Hardiness Zone(s):
5-8 ft. H X 3-6 ft. W; may grow 10 ft. high in prime growing conditions.
Rosy-purple, composite, blooming in dense, fluffy disks
Bloom Time Notes:
Lance-shaped to oval-shaped, with irregularly serrated edges, up to 10 in. long.
Butterflies and bees are attracted to the late summer blooms.
Low woods, along streams, swamp borders, prairies and meadows; native to eastern U.S.
Sun or Shade:
Ironweed (Vernonia gigantea) grows easily in average soils with medium to wet moisture content; in the wild it is often seen in spots subjected to periodic flooding; does very nicely under cultivation in typical garden conditions; prefers full sun.
Other Common Names: Tall Ironweed
Other Scientific Names: Vernonia altissima