Western Harebell (Campanula petiolata) is in the bellflower family family (Campanulaceae). Across the U.S., iNaturalist users have logged 1,040 research-grade flowering observations of it in our sample, peaking in July.
Nationally it blooms mainly from July to September, but timing varies a lot by state and elevation — see the table below.
When to photograph Western Harebell: observations by month (U.S.)
About Western Harebell
Campanula petiolata is a flowering plant that is called western harebell when it is distinguished from Campanula rotundifolia or simply harebell when it is considered the same species. It is in the bellflower family (Campanulaceae). This herbaceous perennial is found in areas of western North America with continental climates. It produces violet-blue, bell-shaped flowers in late summer and autumn. It is closely related to Campanula rotundifolia and is considered either a subspecies or the same species...From Wikipedia via iNaturalist — article, CC BY-SA.
Western Harebell by state
| State | Observations | Peak month | Main season |
|---|---|---|---|
| Colorado | 505 | July | Jul–Aug |
| Wyoming | 198 | July | Jul–Sep |
| Oregon | 132 | July | Jul–Sep |
| Montana | 68 | July | Jul–Aug |
| South Dakota | 36 | July | Jul–Aug |
| Idaho | 35 | July | Jun–Sep |
| New Mexico | 27 | August | Jun–Sep |
| Utah | 22 | August | Aug–Aug |
| North Dakota | 12 | June | Jun–Jul |
Main season = months with at least 30% of the state's peak-month count.
Related wildflowers (bellflower family)
Cardinal Flower
Great Blue Lobelia
Tall Bellflower
Indian tobacco
clasping Venus's looking glass
Creeping Bellflower
Pale-Spiked Lobelia
Downy Lobelia
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 Western Harebell?
Nationally, July has the most observations, with the main season from July to September.
Where is Western Harebell most often seen?
The most observations come from Colorado, Wyoming, Oregon.