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Northern Blue Cohosh

Caulophyllum giganteum

Found in rich moist forests. Weakley, Flora of the Southeastern United States (2025), Northern Tier edition What its natural habitat tells you

21
Good

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

Profile 94%

Height
Up to about 28 inches
Light
Full shade
Soil moisture
Dry to moist
Will it fit your yard?

At a glance

Life cycle
Perennial
Bloom
April to May
Fruiting season
July to August

Not yet recorded · Spread · Leaves

Recorded in 14 Virginia counties.

Natural habitats

Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.

Moist forests

Shortia beneath rhododendrons in mountain woodland
Regional / representative. Shown: Mountains of North and South Carolina; exact site not identified, a neighboring state.Shortia beneath rhododendrons in mountain woodland, Marian Ellis Rowan, 1901. Public domain. Source record.

All habitats

Also found with this plant

Wildlife whose habitat models include habitats this plant grows in, in Virginia. Shared habitat, not food. 110 animals.

All wildlife of Virginia

Ecological relationships

Who uses this plant?

What these records mean

3CaterpillarsGenus host records with ranges including VA

Genus host records with ranges including VA · Caulophyllum

  • Clepsis melaleucanusBlack-Patched Clepsis, Trillium Tortrix
  • Crocigrapha normaniNorman's Quaker
  • Eugonobapta nivosariaSnowy Geometer
Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
0BeesSoutheastern regional records
0Specialist beesPollen specialists
—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
Berberidaceae
Flower color
Red, yellow, purple or brown
Fruit begins
July
Fruit ends
August

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

Growing sources and scope
Also known as

Giant Blue Cohosh

Conservation status

Virginia rankS4
Global rankG4G5
VA statusNot verified
Federal statusNot verified

Conservation source Global and federal source

In your garden

Will it fit your yard?

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How to check your spot

Sources