Thimbleberry
Rubus parviflorus
Last reviewed: June 2026
Rubus parviflorus (Thimbleberry) is a native Wisconsin shrub producing white flowers from May through July. This deciduous plant thrives in partial sun with medium moisture and attracts bees and beetles.
The USDA PLANTS Database (opens in new tab) does not flag Thimbleberry as toxic to livestock.
Light
part sun
Water
medium
Size
36"–72" H × 36"–72" W
Bloom
May, Jun, Jul
Native to
WI
Pollinators
bees, beetles
Thimbleberry is a native shrub that forms dense colonies through underground runners. It produces white flowers in late spring through summer, followed by red raspberry-like berries that are edible but seedy. The large, soft leaves turn yellow in fall before dropping.
Growing Thimbleberry
Grow Thimbleberry in part sun and medium water. Mature plants reach 36 to 72 inches tall and spread 36 to 72 inches wide. Expect moderate maintenance to keep it looking intentional in a front yard.
In an HOA neighborhood
Thimbleberry takes more care to keep looking intentional in a front yard. Maintenance level: moderate. Consider it for backyard or mid-zone beds rather than the street edge.
Works well in: backyard only.
- Spreads aggressively and can look unkempt
- Large informal growth habit appears too wild for front yards
- May be perceived as weedy bramble by neighbors
Wildlife value
The flowers attract native bees and beetles during the long blooming period. Birds and small mammals eat the berries, while the dense growth provides nesting habitat.
Common questions
- When does Thimbleberry bloom?
- Rubus parviflorus blooms from May through July, producing clusters of white flowers that attract various pollinators.
- What pollinators visit Thimbleberry?
- Thimbleberry flowers are visited by bees and beetles, which help pollinate the plants during the summer blooming period.
- What growing conditions does Thimbleberry prefer?
- Thimbleberry grows well in partial sun to partial shade conditions with medium to high moisture levels, making it suitable for woodland edges and moist areas.
- Is Thimbleberry native to Wisconsin?
- Yes, Rubus parviflorus is native to Wisconsin and other regions of North America, where it naturally occurs in forest understories and clearings.
- Is Thimbleberry toxic to livestock?
- The USDA PLANTS Database does not flag Thimbleberry as toxic to livestock.
- Is Thimbleberry HOA-friendly?
- Thimbleberry takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.
Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
Ready to grow Thimbleberry? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
Not sure where to start? Take the 2-minute yard quiz