Threadleaf Ironweed
Vernonia Lettermannii 'Iron Butterfly'
Grow conditions
- Sunlight
- Full sun
- Hardiness zone
- 4-9
- Min. Temperature
- −29°F (−34°C)
- Soil type
- Loam, Sandy, Well drained
- Soil pH
- Acidic, Neutral, Alkaline
Plant traits
Mature height30-36 inches
Mature spread24-30 inches
Plant typePerennials
Bloom seasonSummer
Foliage typeDeciduous
Tolerance & safety
Drought tolerantNo
Pet safeUnknown
Deer resistantNo
Pollinator-friendlyUnknown
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