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'Purple Pillar' Ironweed

Vernonia gigantea (formerly V. altissima) 'Purple Pillar'

This rarely offered selection of Giant Ironweed is distinguished for its sturdy, upright habit. The dark purple flowers open in mid-summer over a three to four week period. Hardy in zones 5 through 9.


'Purple Pillar' Ironweed vibrant flowers open in mid-summer



Pot size: 4.5 in. wide x 5 in. deep (32 fl. oz)



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  • 8 to 10 ft. tall
  • 4 to 5 ft. wide
  • Clump forming
  • How to Grow

  • Sun to part shade – plants grown in part shade may need to be staked
  • Well drained to moist soil
  • Once established, plants are drought tolerant and care free. Old stems can be cut down to the ground anytime during the winter.

    Where to plant

  • Flower beds
  • Meadows
  • Edges of lakes and ponds
  • Rain gardens
  • Wildlife

    The flowers are pollinated by:

  • Butterflies, especially swallowtails
  • Many different species of bees
  • Hummingbirds
  • Native habitat and range

    In the wild, Vernonia gigantea grows:

  • Throughout the southeastern United States
  • In meadows, bottomlands, and along streambanks
  • Source and origin

    Plants are propagated here at the nursery by division.


    Unlike many large perennial plants, 'Purple Pillar' Ironweed isn't a dense plant and takes up less space than one would expect. Its footprint is mainly vertical which good news for gardeners that have limited space and want to add some height to their gardens.


    Dividing plants in the spring is the most reliable way of propagating this exceptional Ironweed.