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Black Cohosh

Actaea racemosa · buttercup family

Black Cohosh (Actaea racemosa)
(c) dogtooth77, some rights reserved (CC BY-NC-SA) · CC BY-NC-SA · via iNaturalist

Black Cohosh (Actaea racemosa) is in the buttercup family family (Ranunculaceae). Across the U.S., iNaturalist users have logged 1,649 research-grade flowering observations of it in our sample, peaking in July.

Nationally it blooms mainly from June to July, but timing varies a lot by state and elevation — see the table below.

When to photograph Black Cohosh: observations by month (U.S.)

JanFebMarAprMayJunJulAugSepOctNovDec

About Black Cohosh

Actaea racemosa (black cohosh, black bugbane, black snakeroot, fairy candle; syn. Cimicifuga racemosa) is a species of flowering plant of the family Ranunculaceae. It is native to eastern North America from the extreme south of Ontario to central Georgia, and west to Missouri and Arkansas. It grows in a variety of woodland habitats, and is often found in small woodland openings. The roots and rhizomes have long been used medicinally by Native Americans. Extracts from these...From Wikipedia via iNaturalist — article, CC BY-SA.

Black Cohosh by state

StateObservationsPeak monthMain season
Virginia482JulyJun–Jul
Pennsylvania220JulyJun–Jul
North Carolina188JulyJun–Jul
Ohio141JulyJul–Jul
New York104JulyJul–Jul
Tennessee82JulyJun–Jul
Maryland75JulyJun–Jul
West Virginia47JulyJun–Jul
Kentucky46JuneJun–Jun
New Jersey42JulyJul–Jul
Georgia41JuneJun–Jul
Massachusetts27JulyJul–Jul
Connecticut24JulyJul–Jul
Illinois24JulyJul–Jul
Minnesota13JulyJul–Aug
Missouri13JuneJun–Jul
Vermont12JulyJul–Jul
Arkansas10JuneJun–Jun
Delaware10JulyJun–Jul
Michigan10JulyJul–Jul
Indiana9JulyJun–Jul
Wisconsin8JulyJul–Jul
Alabama6JuneJun–Jun
South Carolina6JuneJun–Jun

Main season = months with at least 30% of the state's peak-month count.

Related wildflowers (buttercup family)

Photography tips

  • Photograph flowers on calm, overcast mornings to avoid wind blur and harsh shadows.
  • Get low: a shallow depth of field (f/2.8–f/5.6) isolates a bloom against soft color.
  • Stay on trails — trampling meadows kills plants and ruins next year's display.
  • Try a kaleidoscope abstract of a single bloom with our online kaleidoscope tool.

FAQ

When is the best time to photograph Black Cohosh?
Nationally, July has the most observations, with the main season from June to July.
Where is Black Cohosh most often seen?
The most observations come from Virginia, Pennsylvania, North Carolina.