200 Seeds Ironweed Vernonia gigantea Tall Purple Wildflower

Ironweed (Vernonia gigantea) is a tall, stately native perennial known for its vivid purple flower clusters that bloom from midsummer into early autumn. Reaching impressive heights, it brings bold vertical structure and late-season color to meadows, prairies, pollinator gardens, and naturalized landscapes where its nectar-rich blooms draw bees and butterflies.

This adaptable wildflower works beautifully in the back of borders, rain gardens, and wildlife plantings, thriving in moist to average soils and tolerating both sun and light shade. Its deep green lance-shaped foliage provides a handsome backdrop, while the long-lasting blooms make a striking cut flower and an excellent choice for low-maintenance, meadow-style settings.
Species: Vernonia gigantea
Type: Herbaceous perennial
Plant_Habit: Upright, clump-forming
Sun: Full sun to part shade
Soil: Moist, well-drained; tolerates average to wet soils
Days_to_Harvest: Not applicable
Zones: 5-9
Germination: 14-30 days at 65-70F; cold stratification for 2-4 weeks improves results
Sowing: Surface sow, lightly press into soil; needs light to germinate
Spacing: 24-36 inches
Notes: Blooms midsummer to early fall; attractive to pollinators