| | | Family | Compositae | | Plant Type | herbaceous perennial | | Zone | USDA: 4a - 9b RHS: H - FH EGF: H1 - H5 Australia: 1 - 3 | | Care Level | low, easy, suitable for beginners. | | Height | 0.9 - 1.5 m (3 - 5 ft) | | Spread | 0.9 - 1.2 m (3 - 4 ft) | | Light | full sun | | Soil Moisture | average to moist, well-drained | | Soil Type | | | Soil pH | | | | Description | The herbaceous perennial Vernonia missurica (ironweed) bears showy flowers during mid summer to late summer. | | Cautions | Where conditions are favourable, Vernonia missurica (ironweed) can be invasive and may require maintenance to keep it under control. | | |