Iron Butterfly Narrowleaf Ironweed

Iron Butterfly Narrowleaf Ironweed (Vernonia lettermannii 'Iron Butterfly')

Iron Butterfly Narrowleaf Ironweed (Vernonia lettermannii 'Iron Butterfly') is a compact, finely textured perennial that produces masses of vivid purple flowers in late summer. This drought-tolerant and pollinator-friendly variety thrives in well-drained soils, adding structure and bold color to meadows, borders, and xeriscapes.

Distinctive Features

'Iron Butterfly' is a dwarf variety of ironweed, featuring thread-like, deep green foliage that resembles an airy, compact shrub. In late summer, brilliant purple flower clusters cover the plant, creating a dazzling display that lasts well into fall. Growing 24 to 36 inches tall and spreading up to 30 inches, this variety maintains a tidy, rounded habit, making it perfect for small gardens.

Growing Conditions

• Sun Exposure: Full sun.
• Soil: Prefers well-drained, sandy or rocky soil; tolerates clay.
• Water: Drought-tolerant once established; prefers dry to medium moisture.
• Humidity: Tolerates a range of humidity levels.
• USDA Hardiness Zones: 4-9, making it highly adaptable.

Ideal Uses

• Pollinator Gardens: Attracts bees, butterflies, and hummingbirds.
• Dry Meadows and Prairies: Thrives in well-drained soils.
• Xeriscapes: Handles dry conditions with ease.
• Mixed Borders: Provides compact structure and bold late-season color.
• Wildlife-Friendly Landscapes: Supports native ecosystems.

Low Maintenance Care

Iron Butterfly Ironweed is a tough, low-maintenance perennial that thrives in challenging conditions.

• Watering: Water regularly during establishment; becomes drought-tolerant once mature.
• Pruning: Deadhead spent flowers to maintain a tidy look.
• Fertilizing: Requires little to no fertilization; thrives in lean soils.
• Pest and Disease Resistance: Highly resistant to pests and diseases.
• Winter Care: Cut back in early spring before new growth appears.

Why Choose Iron Butterfly Ironweed?

Iron Butterfly Ironweed is an excellent choice for dry, sunny landscapes that need late-season color and pollinator appeal.

• Compact, Bushy Growth: Ideal for small gardens and borders.
• Brilliant Purple Blooms: Creates a late-summer spectacle.
• Pollinator-Friendly: Supports bees, butterflies, and other beneficial insects.
• Drought-Tolerant: Perfect for dry gardens and xeriscapes.
• Low Maintenance: Thrives with minimal care.

For a resilient, compact perennial that delivers long-lasting color and ecological benefits, Iron Butterfly Narrowleaf Ironweed (Vernonia lettermannii 'Iron Butterfly') is an outstanding choice.