Missouri Ironweed is a late summer bloomer that provides nectar for long-tongued insects. Its flowerheads consist of clusters of many small, purple flowers.
Bees, butterflies, caterpillars
4 to 9
3 to 5 ft.
2 to 4 ft.
Performs quite well in garden soils. It can tolerate wet soils so it is an option for a rain garden. Late summer to early fall bloomer provides late season resources for pollinators. Deer avoid eating it.
Care and Maintenance
Remove flower heads when blooms fade to prevent self seeding.
Pest and Diseases
No major issues.
Establishment and Propagation
Plant as a plug or start from seed after cold, moist stratification for 60 days. Spreads through rhizomes.
Alternative Plant Selections
Illinois native statewide.
Upright perennial that can form colonies due to its rhizomatous root system