
Common Boneset (Eupatorium perfoliatum) is in the Sunflowers, Daisies, Asters, and Allies family (Asteraceae). Across the U.S., iNaturalist users have logged 2,692 research-grade flowering observations of it in our sample, peaking in August.
Nationally it blooms mainly from August to September, but timing varies a lot by state and elevation — see the table below.
When to photograph Common Boneset: observations by month (U.S.)
About Common Boneset
Eupatorium perfoliatum or (common) boneset is a common North American perennial plant in the sunflower family. It is native to the Eastern United States and Canada, widespread from Nova Scotia to Florida, west as far as Texas, Nebraska, the Dakotas, and Manitoba. It is also called "agueweed", "feverwort" or "sweating-plant". It was introduced to American colonists by Indians who used the plant for breaking fevers by means of heavy sweating. It is nearly always found in...From Wikipedia via iNaturalist — article, CC BY-SA.
Common Boneset by state
| State | Observations | Peak month | Main season |
|---|---|---|---|
| Vermont | 470 | August | Aug–Sep |
| New York | 245 | August | Aug–Sep |
| Ohio | 208 | August | Aug–Sep |
| Massachusetts | 198 | August | Aug–Sep |
| Pennsylvania | 193 | August | Aug–Sep |
| Wisconsin | 154 | August | Aug–Sep |
| New Hampshire | 145 | August | Aug–Sep |
| Indiana | 133 | August | Aug–Sep |
| Minnesota | 129 | August | Aug–Sep |
| Michigan | 102 | August | Aug–Sep |
| Maine | 99 | August | Aug–Sep |
| North Carolina | 79 | August | Aug–Sep |
| New Jersey | 69 | August | Aug–Sep |
| Connecticut | 66 | August | Aug–Sep |
| Maryland | 55 | September | Aug–Sep |
| Illinois | 51 | August | Jul–Sep |
| Kentucky | 49 | August | Aug–Sep |
| Mississippi | 47 | September | Sep–Oct |
| Virginia | 44 | September | Aug–Oct |
| West Virginia | 33 | August | Aug–Sep |
| Iowa | 26 | August | Jul–Sep |
| Arkansas | 19 | August | Aug–Oct |
| Tennessee | 18 | September | Aug–Sep |
| Alabama | 17 | September | Sep–Sep |
| Missouri | 11 | August | Jul–Sep |
| Louisiana | 9 | September | Sep–Oct |
| Rhode Island | 8 | September | Aug–Sep |
Main season = months with at least 30% of the state's peak-month count.
Related wildflowers (Sunflowers, Daisies, Asters, and Allies)

black-eyed Susan

Common Yarrow

White Snakeroot
Chicory

Lawn daisy

Philadelphia fleabane

Pearly Everlasting

Blue Mistflower
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 Common Boneset?
Nationally, August has the most observations, with the main season from August to September.
Where is Common Boneset most often seen?
The most observations come from Vermont, New York, Ohio.