
Climbing Hempvine (Mikania scandens) is in the Sunflowers, Daisies, Asters, and Allies family (Asteraceae). Across the U.S., iNaturalist users have logged 1,411 research-grade flowering observations of it in our sample, peaking in September.
Nationally it blooms mainly from August to October, but timing varies a lot by state and elevation — see the table below.
When to photograph Climbing Hempvine: observations by month (U.S.)
About Climbing Hempvine
Mikania scandens is a species of flowering plant in the aster family, Asteraceae. Its common names include climbing hempvine, climbing hempweed, and louse-plaster. It is native to the eastern and central United States, its distribution extending into Tamaulipas in Mexico. Reports of its presence in Ontario in Canada are erroneous. It is an introduced and invasive species on many Pacific Islands and in parts of southern Asia.From Wikipedia via iNaturalist — article, CC BY-SA.
Climbing Hempvine by state
| State | Observations | Peak month | Main season |
|---|---|---|---|
| Texas | 318 | October | Sep–Oct |
| Florida | 183 | September | Sep–Nov |
| Mississippi | 177 | September | Sep–Oct |
| Louisiana | 145 | October | Sep–Oct |
| New Jersey | 99 | September | Aug–Sep |
| Alabama | 70 | September | Aug–Oct |
| North Carolina | 66 | September | Aug–Sep |
| Georgia | 58 | September | Sep–Sep |
| Maryland | 51 | September | Aug–Sep |
| Massachusetts | 51 | August | Aug–Sep |
| Virginia | 51 | September | Aug–Sep |
| New York | 31 | August | Aug–Sep |
| Arkansas | 30 | September | Aug–Oct |
| South Carolina | 27 | September | Jul–Sep |
| Pennsylvania | 18 | September | Aug–Sep |
| Connecticut | 9 | September | Aug–Sep |
| District of Columbia | 7 | August | Jul–Oct |
| Delaware | 6 | August | Aug–Sep |
| Kentucky | 6 | September | Aug–Oct |
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 Climbing Hempvine?
Nationally, September has the most observations, with the main season from August to October.
Where is Climbing Hempvine most often seen?
The most observations come from Texas, Florida, Mississippi.