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Vernonia fasciculata

Common Ironweed

Plant Type:

SUN PERENNIALS

Vernonia fasciculata - Purple flowers atop strong stems gradually open from late July into September. Prairie Ironweed is also commonly called Smooth Ironweed. Vernonia fasciculata hales from central North America, New York and Massachusetts. All Ironweeds are terrific bee and butterfly plants. All the Ironweeds, whether they erupt in purple buttons or when set more densely taking the shape of purple flying carpets, are spectacular contrast to all of the following insect attractors: Joe-pye Weeds, mid- to late-season Daylilies, Persicarias, Butterfly Bush, and the composites as found in Rudbeckia, perennial Helianthus and Asters; the latter to which the Ironweeds are related. Site in full sun planted in fertile, moisture retaining soil for best performance. It will demonstrate some modest drought tolerance once established. Established pot grown perennial from cutting or division.


Height:

4-7 ft

Spread:

3-5 ft

Colors:

Purple

Zone:

3 to 7
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Characteristics and Attributes for Vernonia fasciculata

Season of Interest (Flowering)

  • Summer / Late Summer

Season of Interest (Foliage)

  • Spring / Summer

Nature Attraction

  • Butterflies
  • Honey Bees & Native Bees
  • Deer Resistant

Light

  • Full Sun
  • Mostly Sunny

Attributes

  • Border
  • Wildlife Garden
  • Grass Garden
  • Natural Garden

Growth Rate in the Garden

  • Moderately Fast

Soil

  • Fertile
  • Draining
  • Moist

Origins

  • Central North America
  • Massachusetts
  • New York

Propagated By

  • Division

Genus Overview: Vernonia

Common Name: Ironweed

These are the Ironweeds with large heads of deep dark violet-purple flowers mid to late season depending upon the species. They are very good wildlife plants as bees and butterflies are drawn to them. We have seen as many as four species of butterflies at one time on a single stand in the late summer. All prefer moist to draining fertile soil in plentiful sun where they will reward you year after year with their welcome displays. They look terrific with other late blooming perennials such as goldenrods, Joe-pye weeds, perennial sunflowers and ornamental grasses. All are pot grown by division.