New York Ironweed

(Vernonia noveboracensis)

New York Ironweed (Vernonia noveboracensis)

/

return to results
Previous Plant Next Plant

/

scroll forward scroll backward
scroll forward scroll backward
Estimated Native Range
Species Map Help

Summary

Vernonia noveboracensis, commonly known as New York Ironweed, is a deciduous perennial herb that is native to moist meadows, floodplains, and wetlands of the Eastern United States, from Massachusetts to Florida and west to Ohio. It typically grows to a height of 7 feet (2.1 meters) and a width of 3-4 feet (0.9-1.2 meters), with a clumping form. New York Ironweed is characterized by its tall, upright stems and deep purple flowers that bloom in late summer, which are highly attractive to butterflies and other pollinators. The flowers are quite showy, making it a popular choice for naturalistic plantings and pollinator gardens.

This species is valued for its tall, striking flower heads, which add vertical interest to garden borders and wildflower meadows. It is also used for streambank stabilization due to its tolerance of wet conditions. In cultivation, New York Ironweed thrives in full sun to part shade and prefers consistently moist, rich soils with good drainage. It is relatively low-maintenance once established but may require staking in very rich soils to prevent flopping. While it can spread by seeds and rhizomes, it is not typically aggressive in garden settings. However, in ideal wetland conditions, it can become more assertive.CC BY-SA 4.0

Plant Description

  • Plant Type: Herb
  • Height: 5-8 feet
  • Width: 3-4 feet
  • Growth Rate: Moderate
  • Flower Color: Purple
  • Flowering Season: Summer
  • Leaf Retention: Deciduous

Growth Requirements

  • Sun: Full Sun, Part Shade
  • Water: Medium
  • Drainage: Medium, Slow

Common Uses

Bee Garden, Bird Garden, Border Plant, Butterfly Garden, Deer Resistant, Drought Tolerant, Hummingbird Garden, Low Maintenance, Showy Flowers, Street Planting, Water Garden

Natural Habitat

Moist meadows, floodplains, and wetlands of the Eastern United States

Other Names

Common Names: Vein-Leaf Hawkweed

Scientific Names: , Vernonia noveboracensis, Veronia noveboracensis, Vernonia tomentosa, Chrysocoma tomentosa, Serratula noveboracensis, Vernonia harperi, Vernonia noveboracensis f. albiflora, Serratula praealta, Vernonia noveboracensis var. tomentosa

GBIF Accepted Name: Vernonia noveboracensis (L.) Willd.