
False Sunflower (Heliopsis helianthoides) is in the Sunflowers, Daisies, Asters, and Allies family (Asteraceae). Across the U.S., iNaturalist users have logged 1,933 research-grade flowering observations of it in our sample, peaking in July.
Nationally it blooms mainly from June to September, but timing varies a lot by state and elevation — see the table below.
When to photograph False Sunflower: observations by month (U.S.)
About False Sunflower
Heliopsis helianthoides is a species of flowering plant in the family Asteraceae, known by the common names rough oxeye, smooth oxeye and false sunflower. It is native to eastern and central North America from Saskatchewan east to Newfoundland and south as far as Texas, New Mexico, and Georgia.From Wikipedia via iNaturalist — article, CC BY-SA.
False Sunflower by state
| State | Observations | Peak month | Main season |
|---|---|---|---|
| Minnesota | 442 | July | Jun–Sep |
| Ohio | 414 | July | Jul–Sep |
| Indiana | 267 | July | Jun–Sep |
| Wisconsin | 162 | July | Jun–Aug |
| Illinois | 140 | July | Jun–Sep |
| Pennsylvania | 87 | July | Jun–Sep |
| New York | 82 | July | Jul–Aug |
| Iowa | 76 | July | Jun–Aug |
| New Jersey | 53 | July | Jul–Sep |
| Massachusetts | 22 | July | Jul–Sep |
| West Virginia | 21 | July | Jul–Aug |
| North Carolina | 20 | August | Jul–Aug |
| Maryland | 18 | July | Jul–Aug |
| Missouri | 15 | July | May–Aug |
| Vermont | 14 | July | Jul–Aug |
| Arkansas | 13 | May | May–May |
| Virginia | 13 | July | Jul–Aug |
| Connecticut | 10 | August | Jul–Aug |
| Michigan | 9 | July | Jul–Oct |
| North Dakota | 7 | June | Jun–Aug |
| South Dakota | 6 | August | Jul–Sep |
| Kentucky | 5 | July | Jun–Jul |
| Nebraska | 5 | July | Jul–Sep |
| New Hampshire | 5 | August | Jul–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 False Sunflower?
Nationally, July has the most observations, with the main season from June to September.
Where is False Sunflower most often seen?
The most observations come from Minnesota, Ohio, Indiana.