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Photos are representative and may not match your specific variety.
Tall Ironweed
Native wildflower
Native wildflowerVernonia gigantea
- Partial sun
- Zones 5–8
- 60 days to maturity
- Flowers
- 24" spacing
- Low water
- Perennial
Overview
Tall Ironweed (Vernonia gigantea) is a perennial native wildflower. Hardy in USDA zones 5 to 8.
Planting
Direct sow in spring after last frost, or in fall for spring germination. Start indoors 6-8 weeks before last spring frost. Cold stratification improves germination.
Growing
Sun: partial. Water: low. Soil: Well-drained, tolerates poor to average soil, slightly acidic to neutral. Space plants 24" apart. Germination: 10-20 days.