Threadleaf Ironweed
Vernonia Lettermannii 'Iron Butterfly'
Grow conditions
- Sunlight
- Full sun to partial shade
- Hardiness zone
- 4-9
- Min. Temperature
- −22°F (−30°C)
- Soil type
- Well drained
- Soil pH
- Neutral
Plant traits
Mature height3 feet
Mature spread2-3 feet
Plant typePerennials
Bloom seasonSummer
Foliage typeDeciduous
Tolerance & safety
Drought tolerantYes
Pet safeUnknown
Deer resistantNo
Pollinator-friendlyUnknown
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