Himalayan Blackberry Armenian Blackberry

Rubus armeniacus

Rosaceae · broadleaf evergreen shrub · naturalized

Last updated

Himalayan blackberry (Rubus armeniacus), also called Armenian blackberry, is a broadleaf shrub in the Rosaceae family originating from western Europe (not the Himalayan region despite its common name). It reaches 10 ft tall and produces white to reddish flowers approximately 2 inches across. It thrives in mixed and deciduous forests and disturbed areas.

Himalayan blackberry is hardy in zones 6a-8b. Thirty-two diseases and 4 pests are documented. It is classified as a Washington State Class C Noxious Weed due to its aggressive colonization of disturbed sites, roadsides, and forest edges.

Plant Profile

Size & Form

Height
10 ft

Site Requirements

Hardiness
Zones 6a–8b

Ornamental Interest

Origin
Pacific Northwest native

Field Observations

Himalayan Blackberry new leaves
Himalayan Blackberry: New leaves
April 9, 2026 · Issaquah
Watch for this season

Active Conidial Spread

Root Colonization Period

Active Infection & Secondary Spread

Active Below-ground Growth

+ 3 more — see full disease and pest lists below

Diseases: Regionally Documented (30)

Pests: Regionally Documented (4)

Phenological Calendar

View full calendar (1 stages)
Stage Typical Window
New leaves BBCH 11 Apr 1-May 1 Observed
Data Maturity
Structured Multiple sources. Expert review underway.