Thimbleberry (Rubus parviflorus) is in the rose family family (Rosaceae). Across the U.S., iNaturalist users have logged 3,353 research-grade flowering observations of it in our sample, peaking in June.
Nationally it blooms mainly from May to July, but timing varies a lot by state and elevation — see the table below.
When to photograph Thimbleberry: observations by month (U.S.)
About Thimbleberry
Rubus parviflorus, commonly called thimbleberry, is a species of Rubus native to North America.From Wikipedia via iNaturalist — article, CC BY-SA.
Thimbleberry by state
| State | Observations | Peak month | Main season |
|---|---|---|---|
| Washington | 1,004 | May | May–Jun |
| California | 903 | May | Apr–Jul |
| Oregon | 602 | May | May–Jun |
| Michigan | 282 | June | Jun–Jun |
| Minnesota | 192 | June | Jun–Jun |
| Wisconsin | 81 | June | Jun–Jun |
| Utah | 70 | June | Jun–Jul |
| Montana | 57 | June | Jun–Jul |
| New Mexico | 39 | June | Jun–Jun |
| Idaho | 38 | June | Jun–Jun |
| Wyoming | 29 | July | Jul–Jul |
| Colorado | 23 | July | Jun–Jul |
| Alaska | 19 | June | Jun–Jun |
| Nevada | 11 | July | Jun–Jul |
Main season = months with at least 30% of the state's peak-month count.
Related wildflowers (rose family)

Multiflora Rose

Virginia strawberry
Southern Dewberry

Trailing Blackberry

Purple-Flowered Raspberry

Salmonberry

Mock Strawberry

Osoberry
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 Thimbleberry?
Nationally, June has the most observations, with the main season from May to July.
Where is Thimbleberry most often seen?
The most observations come from Washington, California, Oregon.