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Vernonia baldwinii (Western Ironweed)

Western Ironweed, Baldwin's Ironweed, Ironweed

Vernonia baldwinii, Western Ironweed, Baldwin's Ironweed, Ironweed, Purple Flowers, Purple Perennials

Vernonia baldwinii (Western Ironweed) is a tall perennial boasting flattened clusters of tiny, fluffy, vivid purple disks in mid-summer to late fall. Each glorious flower head may consist of up to 15-35 disk florets and the inflorescence may be as wide as 12 in. (30 cm). Attractive to bees, butterflies, and skippers, the blossoms are borne atop stout, upright, hairy stems clad with long, lance-shaped, deep green leaves, 7 in. long (17 cm), slightly serrated along the margins. The blossoms give way to fluffy, rusty seed clusters that are dispersed by the wind. Western Ironweed occurs in dry prairies, hill prairies, glades, openings in upland forests, thinly wooded rocky slopes, pastures, or abandoned fields of central North America. The root system produces rhizomes, which travel in all directions and form colonies. Western Ironweed is probably best suited for a naturalistic garden or natural area. Attractive when in bloom, Western Ironweed is one of the best attractors of late summer butterflies.

  • Grows up to 3-5 ft. tall (90-150 cm) and 12-18 in. wide (30-45 cm).
  • Performs best in full sun in average, dry to moist, well-drained soils.
  • Excellent choice for the back of borders, cottage gardens, wildflower gardens, prairies, and meadows.
  • No serious pest or disease issues. Deer resistant.
  • Deadhead regularly to prolong flowering and avoid unwanted self-seeding.
  • Cut back stems in late spring to reduce plant height if desired.
  • Propagate by seed (few seeds are fertile), by root division, and softwood tip cuttings.
  • Native to central and southern United States.

Requirements

Hardiness 5 - 9
Plant Type Perennials
Plant Family Compositae
Genus Vernonia
Common names Ironweed
Exposure Full Sun
Season of Interest Summer (Mid, Late), Fall
Height 3' - 5' (90cm - 150cm)
Spread 1' - 2' (30cm - 60cm)
Spacing 12" - 18" (30cm - 50cm)
Maintenance Low
Water Needs Low, Average
Soil Type Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Showy
Native Plants United States, Illinois, South Dakota, Kansas, Midwest, Minnesota, Missouri, Nebraska, Iowa, Southeast, Louisiana, Arkansas, Southwest, Texas, New Mexico, Oklahoma, Colorado
Tolerance Drought, Deer, Dry Soil, Rocky Soil, Wet Soil
Attracts Bees, Birds, Butterflies
Garden Uses Beds And Borders
Garden Styles Informal and Cottage, Prairie and Meadow
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Alternative Plants to Consider

Vernonia ‘Summer’s Swan Song’ (Ironweed)
Vernonia arkansana (Arkansas Ironweed)
Vernonia lettermannii ‘Iron Butterfly’ (Narrowleaf Ironweed)
Vernonia angustifolia (Tall Ironweed)
Vernonia fasciculata (Prairie Ironweed)
Vernonia missurica (Missouri Ironweed)

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While every effort has been made to describe these plants accurately, please keep in mind that height, bloom time, and color may differ in various climates. The description of these plants has been written based on numerous outside resources.
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Requirements

Hardiness 5 - 9
Plant Type Perennials
Plant Family Compositae
Genus Vernonia
Common names Ironweed
Exposure Full Sun
Season of Interest Summer (Mid, Late), Fall
Height 3' - 5' (90cm - 150cm)
Spread 1' - 2' (30cm - 60cm)
Spacing 12" - 18" (30cm - 50cm)
Maintenance Low
Water Needs Low, Average
Soil Type Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Well-Drained
Characteristics Showy
Native Plants United States, Illinois, South Dakota, Kansas, Midwest, Minnesota, Missouri, Nebraska, Iowa, Southeast, Louisiana, Arkansas, Southwest, Texas, New Mexico, Oklahoma, Colorado
Tolerance Drought, Deer, Dry Soil, Rocky Soil, Wet Soil
Attracts Bees, Birds, Butterflies
Garden Uses Beds And Borders
Garden Styles Informal and Cottage, Prairie and Meadow
How Many Plants
Do I Need?
Guides with
Vernonia (Ironweed)
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