Ironweed Seeds - Flower Plant for Home Gardens

Ironweed is a hardy native perennial wildflower valued for its vibrant clusters of deep purple flowers and upright growth habit. It is ideal for pollinator gardens, prairie plantings, wildflower meadows, rain gardens, and naturalized landscapes. The plant thrives in full sun with moist to well-drained soil and blooms from mid-summer through fall. Its nectar-rich flowers attract butterflies, bees, and other beneficial pollinators, making it an excellent choice for wildlife-friendly gardens.

Features

• Hardy native perennial wildflower
• Produces vibrant deep purple flower clusters
• Attracts butterflies, bees, and other pollinators
• Ideal for meadows, prairies, rain gardens, and borders
• Long-lasting summer to fall blooms
• Adaptable to moist and well-drained soils
• Low-maintenance and easy to establish

Specifications

• Scientific Name: Vernonia noveboracensis
• Common Name (US): Ironweed (New York Ironweed)
• Seed Type / Variety: Native Perennial Wildflower Variety
• Growth Habit: Upright perennial
• USDA Zones: 5–9
• Planting Season: Spring or Fall
• Growing Season: Spring through Fall
• Sowing Season: February–April or September–November
• Germination Time and Conditions: 14–30 days at 65–75°F (18–24°C); cold stratification for 30–60 days improves germination
• Sunlight Requirements: Full sun
• Soil Requirements: Moist, fertile, well-drained loamy, clay, or sandy soil
• Watering Needs: Moderate to high; prefers consistently moist soil but tolerates short dry periods once established
• Mature Plant Size: 4–8 feet tall, 2–3 feet spread
• Plant Spacing: 24–36 inches apart