How to Grow Tall Ironweed
Vernonia gigantea
Your complete guide to growing Tall Ironweed.
When to Plant Tall Ironweed
Planting windows vary by USDA hardiness zone. Look up yours by ZIP code.
Companion Plants for Tall Ironweed
✓ Good companions
Complements purple blooms with yellow flowers and attracts diverse beneficial insects
Blooms simultaneously to create pollinator magnet and provides late-season nectar source
Similar height and bloom time creates butterfly habitat corridor and shares moisture preferences
Provides structural support and creates natural prairie ecosystem with complementary root systems
Extends pollinator season into fall and creates dense wildlife habitat together
Shares similar growing conditions and attracts beneficial pollinators while extending bloom season
Attracts butterflies and native bees while sharing preference for well-drained soils
Provides ground cover beneath tall stems and attracts different beneficial insects
✗ Keep away from
Invasive shrub that creates dense shade and depletes soil nutrients
Aggressive spreader that can outcompete and smother native wildflowers
Forms impenetrable thickets that crowd out native plants and reduce biodiversity