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Cutleaf Blackberry

Rubus laciniatus

Last reviewed: September 2026

Cutleaf Blackberry (Rubus laciniatus)
Photo: (c) giantcicada, some rights reserved (CC BY)

Toxicity unknown

Cutleaf Blackberry (Rubus laciniatus) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.

The USDA PLANTS Database (opens in new tab) does not flag Cutleaf Blackberry as toxic to livestock.

Light

full sun

Water

medium

Size

36"–96" H × 36"–96" W

Bloom

May, Jun, Jul

Pollinators

bees, beetles

Native alternatives to Cutleaf Blackberry

Cutleaf Blackberry is not native to the United States. These natives fill a similar role in a planting, matched on bloom season, bloom color and mature size.

Before you buy

Your city may pay you to plant this

Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 452 programs across 44 states, each with a link to the provider and the date we last checked it.

Find rebates in your area

Cutleaf blackberry is a vigorous shrub with deeply divided leaves and thorny canes that produce white flowers followed by edible black berries. It spreads aggressively through underground runners and can quickly form dense thickets if not managed. The plant has an informal, somewhat wild appearance that works well in naturalized areas.

In an HOA neighborhood

Cutleaf 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.

  • Extremely aggressive spreader that can quickly become invasive
  • Thorny canes create maintenance challenges and safety concerns
  • Can appear very messy and uncontrolled without constant pruning

Wildlife value

The flowers attract bees and beetles during late spring and summer blooming. Birds and small mammals eat the berries, while the dense growth provides nesting sites and cover.

Common questions

How much sun does Cutleaf Blackberry need?
Cutleaf Blackberry grows best in full sun conditions.
When does Cutleaf Blackberry bloom?
Cutleaf Blackberry blooms in May, June, and July.
Is Cutleaf Blackberry toxic to livestock?
The USDA PLANTS Database does not flag Cutleaf Blackberry as toxic to livestock.
What pollinators does Cutleaf Blackberry attract?
Cutleaf Blackberry draws bees and beetles.
Is Cutleaf Blackberry HOA-friendly?
Cutleaf Blackberry takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

If something looks wrong

Common plant problems, and what to check first

These come up on almost any plant. Each guide lists the likely causes in the order they are worth ruling out, with one thing to check before you act on any of them, and links to the source it came from.

See all plant problem guides

Ready to grow Cutleaf Blackberry? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

Planning a bed around it? Start a free plan with this plant

Not sure where to start? Take the 2-minute yard quiz