Vernonia lettermannii 'Iron Butterfly'

Narrowleaf Ironweed

'Iron Butterfly' Narrowleaf Ironweed has many bright purple star-like flowers that appear in late summer and fall. Foliage is delicate and thread-like on a compact plant. This Vernonia is very tolerant of site extremes, both dry and wet and works well in the upper areas of bio-swales. Introduced by Dr. Allan Armitage and North Creek Nurseries.  One of the native plants chosen by Piet Oudolf for the newly planted meadow garden at Delaware Botanic Gardens. 2023 PHS Gold Medal Plant.

PRN Preferred:  Not only beautiful purple flowers, but also delicate unusual fine foliage.

  • Category: Perennials
  • Alternate Cultivar: Iron Butterfly
  • Hardiness Zone: 4
  • Height: 36 Inches
  • Spread: 24 Inches
  • Bloom Color: Pink


Qty Description Comments Future Crop Future Crop Ready Date
0 Vernonia lettermannii Iron Butterfly #1 (purple) 400 9/15 Login for pricing
Substitutions are Available