Allegheny Blackberry, Highbush Blackberry
Rubus allegheniensis

Family: Rosaceae (ro-ZAY-see-ee) (Info)
Genus: Rubus (ROO-bus) (Info)
Species: allegheniensis (al-leh-gay-nee-EN-sis) (Info)

Category:

Perennials

Shrubs

Height:

4-6 ft. (1.2-1.8 m)

6-8 ft. (1.8-2.4 m)

Spacing:

24-36 in. (60-90 cm)

36-48 in. (90-120 cm)

Hardiness:

USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

Sun Exposure:

Full Sun

Sun to Partial Shade

Light Shade

Danger:

N/A

Bloom Color:

White/Near White

Bloom Time:

Mid Spring

Late Spring/Early Summer

Foliage:

Herbaceous

Other details:

This plant is attractive to bees, butterflies and/or birds

Drought-tolerant; suitable for xeriscaping

This plant is fire-retardant

Soil pH requirements:

4.6 to 5.0 (highly acidic)

5.1 to 5.5 (strongly acidic)

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Patent Information:

Non-patented

Propagation Methods:

Unknown - Tell us

Seed Collecting:

Unknown - Tell us

Regional

This plant has been said to grow in the following regions:

Wedowee, Alabama

Barbourville, Kentucky

Cumberland, Maryland

Minneapolis, Minnesota

Buffalo, New York (2 reports)

Millersburg, Pennsylvania

Newport Center, Vermont

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Gardeners' Notes:

2
positives
1
neutral
0
negatives
RatingContent
Neutral

On Jun 28, 2013, poisondartfrog from Barbourville, KY (Zone 7a) wrote:

State fruit of Kentucky, R. alleghenienis is hardy zones 3b through at least 9b, and likely warmer. The information in plant files is incorrect.

Positive

On Jan 15, 2010, superpickle from Chemainus
Canada wrote:

We live on Vancouver Island and have this plant along our property line. This year quite a number of the canes have large gauls on them. We would like to know if anyone knows what would cause this problem. We have cut the diseased canes off at ground level and burned them. Please advise.

Positive

On Oct 15, 2008, Malus2006 from Coon Rapids, MN (Zone 4a) wrote:

Beside trailing blackberry, this may be the only other blackberry species to be hardy to Minnesota. It is rated at zone 4 hardy but many cultivars are made only for zone 5 - I have seen a few zone 4 cultivars online but hadn't purchased them - the only area I have seen them growing in the wild so far (they can be a bit difficult to tell from raspberries) is the St. Croix valley at O' Brien State Park. It prefers acidic soil, which explains its absent from most of Minnesota - the northern part of the the state is mostly acidic soil but too cold for it to grow while the southern part is mostly alkaline - hositle environment toward it. Maybe the St. Croix River brings acidic soil from further north making it more friendly toward highbush raspberry. It is also possibly zone 3b hardy but I wil... read more