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New York Ironweed

Vernonia noveboracensis

Found in pastures, bottomlands, streamsides, swales, wet meadows and thickets, margins of serpentine barrens, other alluvial and open or disturbed habitats. FloraQuest, phone app (app page) What its natural habitat tells you

75
Strong

Native to Florida. How scores work Is it native here?

Profile 100%

Height
5–8 feet
Spread
3–4 feet
Light
Full sun, Partial shade
Soil moisture
Usually moist

Space about 3.5 ft apart from its recorded spread, about 8 per 100 sq ft. Enter your bed size for a count

Will it fit your yard?

At a glance

Life cycle
Perennial
Leaves
Deciduous
Bloom
July to September
Fruiting season
August to October

Recorded in 8 Florida counties.

Natural habitats

Places it grows wild. Not a planting requirement.

Forest edges and thickets

Wooded scene looking out over partially open fields
Named place / source context. Shown: Chickamauga and Chattanooga National Military Park, Georgia and Tennessee; which part is not recorded, a neighboring state.Wooded scene looking out over partially open fields, Richard Schlecht, undated. Public domain. Source record.
Ecological relationships

Who uses this plant?

What these records mean

21CaterpillarsGenus host records with ranges including FL

Genus host records with ranges including FL · Vernonia

  • Anavitrinella pampinariaCommon Gray, Cranberry Spanworm
  • Archips rileyanaSouthern Ugly-Nest Caterpillar Moth
  • Carmenta bassiformisEupatorium Borer Moth, Ironweed Clearwing Moth
  • Chlorochlamys chloroleucariaBlackberry Looper Moth
  • Dichomeris setosellaHairy Dichomeris
  • Estigmene acreaSalt Marsh Moth, Acrea Moth
  • Eupithecia miserulataCommon Eupithacia, Common Pug
  • Hellinsia paleaceusOne-Spotted Plume Moth
  • Papaipema baptisiaeWild Indigo Borer, Indigo Stem Borer
  • Perigea xanthioidesRed Groundling
Show all 21
  • Platynota idaeusalisTufted Apple-Bud Moth
  • Pleuroprucha insulsariaCommon Tan Wave
  • Polygrammodes flavidalisIronweed Root Moth, Vernonia Root-Borer
  • Spodoptera ornithogalliYellow-Striped Armyworm Moth, Cotton Cutworm
  • Synchlora frondariaSouthern Emerald
  • Thyridopteryx ephemeraeformisEvergreen Bagworm Moth
  • Vanessa virginiensisAmerican Lady, American Painted Lady
  • Paralobesia sambuci
  • Paralobesia vernoniana
  • Polygrammodes oxydalis
  • Thyraylia bunteana
Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
46BeesSoutheastern regional records

Southeastern regional records · Vernonia

Individual names are not available yet.

Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
9Specialist beesPollen specialists

Pollen specialists · Vernonia

  • Andrena placata
  • Melissodes denticulatus
  • Melissodes druriellus
  • Melissodes microstictus
  • Melissodes niveus
  • Melissodes subillatus
  • Melissodes trinodis
  • Melissodes vernoniae
  • Perdita octomaculata
Smith, Bachelder, Russell, Morales, Mosher & Seltmann 2024, Bee-Specialization-Modeling v0.6.1 (specialist host table compiled from J. Fowler's pollen specialist bee lists), Zenodo, CC BY 4.0
—BirdsRecorded genus food-resource interactions; not a state feeding claim

No records yet · Ants · Beetles · Flies · Adult butterflies / moths · Other wasps · Other insects

Growing and identification

Plant details

Family
Asteraceae
Hardiness
Zones 5a–9b
Soil pH
Acidic
Flower color
Purple
Growth rate
Moderate
Growth habit
Several stems
Foliage color
Dark green
Fruit begins
August
Fruit ends
October

Safety has not been reviewed for this plant; check toxicity and thorns before planting.

Growing sources and scope
  • Bloom · “July to September” · FloraQuest: Carolinas, Georgia (Southeastern Flora Team), phone app (app page) (ranked first; USDA PLANTS differs) · Carolinas and Georgia
  • Flower color · “Purple” · NC Extension Plant Toolbox
  • Foliage color · “Dark green” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
  • Fruit begins · “August” · FloraQuest: Carolinas, Georgia (Southeastern Flora Team), phone app (app page) (ranked first; USDA PLANTS differs) · Carolinas and Georgia
  • Fruit ends · “October” · FloraQuest: Carolinas, Georgia (Southeastern Flora Team), phone app (app page) (ranked first; USDA PLANTS differs) · Carolinas and Georgia
  • Growth habit · “Several stems” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
  • Growth rate · “Moderate” · USDA PLANTS · Nationwide species characteristics; local growing conditions may vary
  • Hardiness · “Zones 5a–9b” · NC Extension Plant Toolbox
  • Height · “5–8 feet” · NC Extension Plant Toolbox (ranked first; Tennessee Smart Yards, USDA PLANTS, Prairie Moon 2026 Cultural Guide differ)
  • Leaves · “Deciduous” · NC Extension Plant Toolbox
  • Life cycle · “Perennial” · NC Extension Plant Toolbox
  • Light · “Full sun (6 or more hours of direct sunlight a day); Partial shade (direct sunlight only part of the day, 2-6 hours)” · NC Extension Plant Toolbox (ranked first; Tennessee Smart Yards, Virginia DCR Piedmont, Virginia DCR Coastal Plain, Prairie Moon 2026 Cultural Guide differ)
  • primary_flower_color · “purple” · USDA PLANTS
  • Soil · “Moist; Occasionally wet” · NC Extension Plant Toolbox (ranked first; Tennessee Smart Yards, Virginia DCR Piedmont, Virginia DCR Coastal Plain, Prairie Moon 2026 Cultural Guide differ)
  • Soil pH · “Acidic” · NC Extension Plant Toolbox
  • Spread · “3–4 feet” · NC Extension Plant Toolbox

Conservation status

Florida rankSNR
Global rankG5
FL statusNot verified
Federal statusNot verified

Conservation source Global and federal source

In your garden

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Growing cautions

For planning only; these do not change the score or Fit.

Sources