General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun
Full Sun to Partial Shade
Partial or Dappled Shade
Minimum cold hardiness: Zone 4a -34.4 °C (-30 °F) to -31.7 °C (-25 °F)
Maximum recommended zone: Zone 9b
Plant Height: 36 - 72 inches
Plant Spread: 24 - 48 inches
Flowers: Showy
Flower Color: Purple
Bloom Size: Under 1"
Flower Time: Summer
Late summer or early fall
Underground structures: Rhizome
Uses: Will Naturalize
Wildlife Attractant: Bees
Birds
Butterflies
Propagation: Seeds: Stratify seeds: 3 months at 40 degrees

Image
Common names
  • New York Ironweed
  • Vein-Leaf Hawkweed

Photo Gallery
Location: my Zone 8a garden in North Georgia Mountains
Date: 2023-10-03
Location: my Zone 8a garden in North Georgia Mountains
Date: 2023-10-03
Approximately 10 feet tall when blooming
Location: Plano, TX
Date: 2018-07-18
Location: Aberdeen, NC (S. Sycamore street)
Date: July 28, 2022
New York Ironweed #292; RAB page 1047,  179-27-5. AG page 238, 55
Location: Aberdeen, NC (S. Sycamore street)
Date: July 28, 2022
New York Ironweed #292; RAB page 1047,  179-27-5. AG page 238, 55
Location: Aberdeen, NC (S. Sycamore street)
Date: July 28, 2022
New York Ironweed #292; RAB page 1047,  179-27-5. AG page 238, 55
Location: Aberdeen, NC (S. Sycamore street)
Date: July 28, 2022
New York Ironweed #292; RAB page 1047,  179-27-5. AG page 238, 55
Location: Fairfax, VA | September 2022
Location: Plano, TX
Date: 2017-09-15
Location: central Illinois
Date: 2011-09-11
Location: Downingtown, Pennsylvania
Date: 2018-08-01
plants in bloom in landscape
Location: Hiking Trail In Fairfax :-)
Location: Perelman Park, Manheim Township, Lancaster County Pennsylvania
Date: 2016-08-12
Location: Plano, TX
Date: 2017-03-09
Location: National Botanical Garden, DC, Virginia :) | May, 2022
Date: 2022-05-28
Location: Fieldstone Gardens, Vassalboro, Maine, USA
Date: 2019-08-29
Vernonia noveboriensis (VEO100)
Location: Plano, TX
Date: 2017-09-07
Location: Lilburn, GA
Date: 2020-05-26
OLYMPUS DIGITAL CAMERA
Photo by Newyorkrita

Date: 2008-08-22
Location: near West Chester, Pennsylvania
Date: 2011-08-05
smaller plant in bloom in native meadow

Credit NPS

Courtesy Gardens in the Wood of Grassy Creek
  • Uploaded by vic
Location: central Illinois
Date: 2011-09-20
Location: near West Chester, Pennsylvania
Date: 2011-08-05
wild plants in bloom in native meadow

Photo Courtesy of Lazy S'S Farm Nursery.
  • Uploaded by Joy

Courtesy Crownsville Nursery
  • Uploaded by vic
This plant is tagged in:
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Comments:
  • Posted by ILPARW (southeast Pennsylvania - Zone 6b) on Mar 1, 2018 7:23 PM concerning plant:
    Ironweeds are similar to Joe-Pye-Weeds but have more open flower clusters with flowers, all disc flowers, in deeper purple color, and more slender, alternate leaves. The native range of this species is from Massachusetts to New York to Ohio and then southward into north Florida. This species is supposed to have hair-like tips on the bracts of the flowers. It usually grows about 4 to 6 feet high but can grow up to 8 feet. Its alternate leaves get to be 6 to 10 inches long and are downy hairy beneath. The stems can be smooth or with stiff hairs. The flower clusters are loosely branched, not dense, and about 3 to 4 inches wide. It is fairly common in the meadows of southeast Pennsylvania. It is very attractive to a good number of butterflies and other pollinators as it blooms in July into September. It is sold by a good number of native plant nurseries in the eastern US. The name "Ironweed" comes from the stems being tough. It makes a fine perennial in the garden. It is recommended that as a garden perennial, it should be dug up and divided every 3 to 4 years. Unlike the Smooth Ironweed, this species does not bear rhizomes, underground stems. To keep the plant shorter and more compact, on can prune it down to 2 feet high in late spring.
  • Posted by Newyorkrita (North Shore, Long Island, NY ) on Oct 20, 2011 5:00 PM concerning plant:
    Years ago I bought a small four inch square pot of New York Ironweed which grew intro a lovely clump. When it is going to bloom, the New York Ironweed does grow very tall and then flops over leaning a lot. The bees and insects do love the deep purple blooms so much.

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