Ironweed ‘Iron Butterfly’ – Vernonia Lettermannii


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Iron Butterfly, scientifically known as Vernonia lettermannii, is a stunning perennial plant known for its delicate, butterfly-like appearance. With its vibrant purple blooms and slender foliage, this plant adds a touch of elegance to any garden or landscape.


Easily grown in medium to dry, well-draining soils of average fertility in full sun. Tolerant of various soil conditions, including hot, dry, rocky, and alkaline. Also tolerant of occasional flooding and drought once established. Hardy in Zones 4-9.



Typical Uses

Iron Butterfly is a versatile plant that can be used in various ways:

  • Ornamental Garden: Plant it in your garden to enjoy its beautiful flowers and attract pollinators like butterflies and bees.
  • Cut Flowers: Use its lovely blooms for fresh-cut flower arrangements, adding a pop of color to your indoor spaces.
  • Wildlife Habitat: Create a wildlife-friendly environment as it serves as a food source for butterflies and other beneficial insects.

Establishment and Care Instructions

Caring for Iron Butterfly is relatively straightforward:

  • Sunlight: Plant in a location with full sun to light shade for the best results.
  • Soil: Well-drained soil is ideal; it can tolerate a range of soil types.
  • Water: Keep the soil consistently moist but avoid waterlogged conditions.
  • Pruning: Cut back spent flowers to encourage continuous blooming and maintain a tidy appearance.

Special Features and Usage

Iron Butterfly has some exceptional features:

  • Compact Size: This variety is more compact and fits well in smaller gardens or containers.
  • Butterfly Magnet: The nectar-rich flowers attract a variety of butterflies and pollinators.
  • Long Blooming Season: Enjoy a profusion of purple blooms from late summer through fall.

Whether you’re a seasoned gardener or just starting, Iron Butterfly ‘Ironweed’ (Vernonia lettermannii) is a fantastic addition to your outdoor space, adding beauty, biodiversity, and charm. Plant it today and watch your garden come to life with vibrant color and life.


Light Requirement

Full Sun, Partial Shade

Soil Moisture

Well Drained

Water Use



1 Gallon


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Ironweed ‘Iron Butterfly’ – Vernonia Lettermannii
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