In the landscape
Border · Meadow · Naturalized · Pond · Butterfly · Cottage · Native · Pollinator
Data sources
Ironweed
Vernonia noveboracensis · Perennial
Ironweed is a moderate-growing perennial, hardy in USDA zones 5-9, that matures to about 4–6 ft × 3–4 ft. It does best in full sun with high water needs in moist and occasionally-wet soil. Expect purple blooms in summer and fall. It attracts bees, butterflies and pollinators and stands up well to deer and wet soil.
- USDA zones
- 5-9
- Sun
- Full sun
- Water
- High
- Mature size
- 4–6 ft × 3–4 ft
- Growth rate
- Medium
- Maintenance
- Low
- Soil
- Moist, Occasionally-wet
- Bloom color
- Purple
- Bloom season
- Summer, Fall
- Attracts
- Bees, Butterflies, Pollinators, Songbirds
- Tough against
- Deer, Wet soil
- Native to
- Eastern and southeastern United States
Will it survive your winters?
We score Ironweed’s freeze-trouble range against the real coldest nights your area has recorded.
Powered by ~35 years of daily lows from the nearest NOAA weather station. A risk read, not a guarantee — a sheltered spot or mature plant beats the odds.
More plants for your zone: Zone 5 · Zone 6 · Zone 7 · Zone 8 · Zone 9
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