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Vernonia lettermannii Iron Butterfly

Narrow-leaf Ironweed (Slim-leaf Ironweed)

The narrow, arching, fine-textured foliage is topped by clusters of tiny, purple flowers.

  • »  Masses of tiny, purple, flower clusters
  • »  Fine, thread-leaf, light to mid-green foliage
  • »  Attractive perennial even when it is not flowering
  • »  Drought tolerant and thrives in poor, rocky soils
  • »  Bloom Time: Late August to mid-September

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  • Category:Perennials
  • Hardiness Zone:4
  • Height:70-90 cm
  • Spread:60-70 cm
  • Bloom Color: Purple
Exposure
• Full Sun
Soil Moisture
• Average to Dry Soils
• Well-drained
Attracts Wildlife
• Attracts Butterflies
• Attracts Hummingbirds
Growth Rate
• Medium
Attributes
• Cut Flower/Foliage
• Drought Tolerant
• Heat Tolerant
• Low Maintenance
Flowering Time
• Lt. Sum-Fall
Habit
• Compact
• Upright
Foliage Color
• Green
Landscape uses
• Rock garden
Planting instructions
• Container Plants
Growing & Maintenance Tips for Vernonia lettermannii 'Iron Butterfly'

Best grown in an average to dry, well-drained, sandy soil, in full sun. Tolerates short periods of moisture and is drought tolerant once established. Low maintenance perennial throughout the season.