Himalayan Blackberry

Himalayan Blackberry (Rubus armeniacus or R. discolor)

Biennial shrub that grows up to 3 metres in height with sharp thorns and black fruit. The stems are 5 angled with toothed, evergreen leaves. The small flowers are white to pink and have 5 petals. It reproduces by seed, root buds and vegetatively by rooting at stem tips.

LRISS Category: ERADICATE

Habitat & Ecology

Himalayan Blackberry is found along disturbed roadsides and are prevalent in ditches. It can adapt to a wide range of moisture and soil regimes but thrives in moist areas with full sunlight.

Impacts

This plant spreads aggressively and can take over large areas of riparian areas and outcompete native vegetation. Dead stems and leaf litter build-up does not allow other plants to grow. Birds and animals eat the berries and spread the seed kilometers away. One

Management

Mechanical control like pulling canes, digging and mowing will need to occur a number of times. Mechanical control can often leave root buds and roots behind and will re-sprout. Prevention is best for this plant. Choose a native blackberry for your garden. Contact LRISS for all other treatment questions.

References

Targeted Invasive Plant Solutions 11. April 2008. Himalayan Blackberry. Invasive Species Council of BC. www.bcinvasives.ca