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Blackberry

Rubus fruticosus
The familiar European blackberry, a vigorous arching thorny deciduous bramble that forms dense thickets and bears clusters of large sweet black aggregate berries in mid-to-late summer. Rubus fruticosus is not a single plant but a species AGGREGATE of many closely related microspecies, long cultivated for its fruit. HONEST CAUTION: while the berries are edible and excellent, the European blackberry aggregate is a load-bearing INVASIVE in many temperate regions. It and the closely related Himalayan blackberry (Rubus armeniacus) escape gardens into dense, impenetrable, thorny thickets that smother native vegetation, and are serious noxious weeds across the Pacific Northwest and elsewhere. Where it is invasive, plant a regionally-appropriate native bramble (Plotwright carries the native Allegheny blackberry, Rubus allegheniensis) or a sterile/thornless cultivated cultivar instead.
Climate fit: moderate (55/100)
Edible
Structure
Light
Full sun / Part shade
Water
Moderate water
Mature size
3-8 ft tall · 4 ft apart
Hardy in zones
5a-9b
very cold to frosty winters
AHS heat range
1-11
Plant range authored in AHS heat-zone terms.
Native in Illinois
No

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Edible and excellent - this is the familiar blackberry, eaten fresh and used in pies, jams, and preserves.

Cold hardiness

These values are location-based: this location's current hardiness is the baseline, and the 2050 value is a projected future climate for this same location.
Now
Zone 6b
Plotwright
USDA Zone 6b
-5°F to 0°F
Well-suited
Zone 7a
Plotwright
0°F to 5°F
Well-suited
In plain terms: This location has cold winters. Its winters are projected to keep warming through 2050.
✓
Well-suited today and still thriving in 2050.

Heat tolerance

Heat tolerance values are location-based too: heat days today are observed at this site, and the 2050 value projects this same location under a future climate.
Loading AHS heat-zone data for this location...

Where this plant fits

Suitable across 40 ecoregions - 31 climate-resilient through 2070 · 1 suited today · 8 newly possible by 2070. Best matches first.
Appalachian mixed mesophytic forests
›
Appalachian-Blue Ridge forests
›
Arizona Mountains forests
›
Atlantic coastal pine barrens
›
Blue Mountains forests
›
Central Pacific Northwest coastal forests
›
Central-Southern Cascades Forests
›
Chihuahuan desert
›
Chilean Matorral
›
Colorado Rockies forests
›

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Container

Educator packet

Plant packet
Blackberry educator packet
The familiar European blackberry, a vigorous arching thorny deciduous bramble that forms dense thickets and bears clusters of large sweet black aggregate berries in mid-to-late summer. Rubus fruticosus is not a single plant but a species AGGREGATE of many closely related microspecies, long cultivated for its fruit. HONEST CAUTION: while the berries are edible and excellent, the European blackberry aggregate is a load-bearing INVASIVE in many temperate regions. It and the closely related Himalayan blackberry (Rubus armeniacus) escape gardens into dense, impenetrable, thorny thickets that smother native vegetation, and are serious noxious weeds across the Pacific Northwest and elsewhere. Where it is invasive, plant a regionally-appropriate native bramble (Plotwright carries the native Allegheny blackberry, Rubus allegheniensis) or a sterile/thornless cultivated cultivar instead.
Scientific name
Rubus fruticosus
Plant type
shrub
Hardiness
5a-9b
Light
full-sun, part-shade
Moisture
moderate
Spacing
48 inches
Classroom prompts
- Which plant traits are observations, and which are care recommendations?
- How would this plant fit change if the garden location moved warmer, colder, wetter, or drier?
- Which source-backed facts would you cite in a lesson handout?
Use the Sources & citations section below for page citation styles and the field-level source list.

Sources & citations

Cite this page
For lesson plans, articles, or research that uses this page. Use the source cards below to explore the references that informed this record.
Plotwright. (2026, May 17). Blackberry (Rubus fruticosus). Retrieved 2026, August 20, from https://plotwright.com/plants/rubus-fruticosus
Sources used for this record
This record is compiled from the sources below.
GBIF
Botanical research database
Open source
Source guide
Wikipedia (ecoregion articles)
Botanical research database
Open source
Source guide
Wikimedia Commons
Photo · CC BY-SA 4.0
Open source
Source guide