Pennsylvania Blackberry
Rubus pensilvanicus
Last reviewed: July 2026
Light
part sun
Water
medium
Size
24"–72" H × 24"–72" W
Bloom
May, Jun, Jul
Native to
AL, AR, CT, DE and 31 more states
Pollinators
bees, beetles, flies
Pennsylvania blackberry is a native shrub that produces white flowers in late spring and summer, followed by edible dark berries. This deciduous plant spreads by underground runners and can form colonies over time, making it useful for naturalizing areas.
In an HOA neighborhood
Pennsylvania Blackberry takes more care to keep looking intentional in a front yard. Maintenance level: high. Consider it for backyard or mid-zone beds rather than the street edge.
Works well in: backyard only.
- Spreads aggressively and can look unruly
- Thorny canes may be considered unsafe
- Natural growth habit appears wild and unkempt
Wildlife value
Host plant for spring azure, mourning cloak.
The flowers attract bees, beetles, and flies during the long blooming period from May through July. Birds and small mammals enjoy the nutritious berries in late summer.
Common questions
- How much sun does Pennsylvania Blackberry need?
- Pennsylvania Blackberry grows best in part sun conditions.
- When does Pennsylvania Blackberry bloom?
- Pennsylvania Blackberry blooms in May, June, and July.
- Where is Pennsylvania Blackberry native?
- Pennsylvania Blackberry (Rubus pensilvanicus) is native to AL, AR, CT, DE and 31 more states, per the USDA PLANTS Database and regional native plant society lists.
- What butterflies or moths does Pennsylvania Blackberry host?
- Pennsylvania Blackberry is a larval host plant for spring azure and mourning cloak.
- Is Pennsylvania Blackberry HOA-friendly?
- Pennsylvania Blackberry 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 Pennsylvania Blackberry? 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