Were you able to guess this “berry” delicious invasive species? If not, don’t worry about it because there are A LOT of people that don’t realize that the Himalayan Blackberry is actually an invasive species. It can be found everywhere in the Sea to Sky Corridor and is a relative of the Trailing blackberry and the Cut-leaf blackberry, so it can be somewhat difficult to identify.
Some things to look for if it is a Himalayan Blackberry plant is by looking at the stem and the leaves. The stem is robust and stiff with large, prickles that can be either hooked or flattened. Leaves are round with tapered edges and the flowers are white-pinkish with a 5-petal arrangement. A big way to tell if you’re looking at a Himalayan Blackberry plant or one of its relatives, is by its height. A Himalayan Blackberry bush will usually be around 3 meters in height and around 12 meters in length.
It is a wildly spread invasive, with thickets producing between 7,000- 13,000 seeds per square meter that stay viable in soil for up to several years. Due to it’s nature, the Himalayan Blackberry has a lot of negative impacts on our environment, such as out-competing native plant species, restricting wildlife’s’ access to water sources and it also limits recreational access.
We are strategically controlling the invasive Himalayan Blackberry in the Squamish area, while eradicating it from Whistler and Pemberton. Reporting this plant in Whistler and Pemberton helps to eliminate it from those areas and keep it from spreading farther North.