100 Seeds Tall Ironweed Vernonia gigantea Native Wildflower Perennial

Tall Ironweed is a robust native perennial known for its towering stems and vivid purple blooms that bring late-season color to meadows, borders, and naturalized plantings. Its upright habit and abundant flower clusters make it a striking vertical accent and a favorite for pollinator-friendly landscapes.

This plant works beautifully in wildflower meadows, rain gardens, and the back of perennial borders where its height adds structure and drama. The deep purple flowers appear in late summer through early fall atop tall green stems with narrow lance-shaped leaves. It grows best in full sun and tolerates a range of soil types, including moist and clay soils. Plant in groups for the strongest visual impact.
Species: Vernonia gigantea
Type: Herbaceous perennial
Plant_Habit: Upright, clump-forming
Sun: Full sun
Soil: Average to moist, well-drained
Zones: 5-9
Germination: Cold stratification recommended; 14-30 days
Sowing: Surface sow, lightly press into soil
Spacing: 24-36 inches
Notes: Blooms late summer to fall