Himalayan Blackberry Armenian Blackberry
Rubus dicolor
Rosaceae · broadleaf · native
Himalayan blackberry is a vigorous, thorny scrambler you will encounter throughout disturbed areas and margins in western lowlands. Dense clusters of white flowers give way to juicy black berries that persist on the plant well into fall, making the canes ornamentally interesting even as wildlife consumes the fruit.
This species thrives in full sun to part shade and tolerates poor soils, draining conditions, and neglect. In the Puget Sound region, it spreads aggressively through layering stems and bird-dispersed seeds. Control through repeated cutting and careful monitoring of new growth is essential in managed landscapes.
Quick Facts
Origin
Pacific Northwest native
Diseases (29)
Leaf And Cane Spot
Phytophthora cactorum Fruit Rot
Various species including Colletotrichum acutatum, C Anthracnose
Armillaria ostoyae Armillaria Root Rot
Blackberry Collapse
Blackberry Rust
Cane and Leaf Rust
Kalmusia coniothyrium Cane Blight
Agrobacterium tumefaciens Crown and Cane Gall
Peronospora sparsa Downy Mildew
Dry Cell (Dry Berry) Syndrome
Orange Rust
Phytophthora spp. (P Phytophthora Root Rot
Podosphaera aphanis var. aphanis Powdery Mildew
Purple Blotch
Septoria Leaf Spot
Xenodidymella applanata Spur Blight
Stamen Blight
Verticillium dahliae Verticillium Wilt
Various plant viruses (Blueberry mosaic virus, Blueberry ... Virus Diseases
Seimatosporium lichenicola Ascospora Dieback
Raspberry bushy dwarf virus (RBDV) + raspberry leaf mottl... Crumbly Fruit
Described as Dry Berry
Botrytis cinerea Fruit Rot and Cane Botrytis
A bacterium, Pseudomonas syringae pv. syringae Pseudomonas Blight
Tomato ringspot Ringspot
Phytophthora rubi Root Rot
Various plant viruses (Raspberry bushy dwarf virus, Straw... Virus
Phragmidium rubi Yellow Rust