There are a number of invasive plant species in the Central Kootenay.
Download our most recent priority list here (PDF - 44KB)

For more detailed information on the biology, distribution, and management strategy for each species in our region, please see the Invasive Plant Profiles

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Scotch broom

Scotch broom (Cytisus scoparius) is often admired as a beautiful ornamental species. With bright yellow flowers and lush green stems, it is certainly attractive, however, it is considered a highly invasive alien plant. This woody perennial shrub can be identified by its yellow pea-like flowers that bloom in May, and flat brown seed pods.

Broom is originally from Scotland, and was brought to BC in the 1850's as a garden ornamental to new immigrants of their homeland. Since then, this seemingly harmless plant has spread dramatically throughout the Coastal areas of BC and is now moving into some areas of the Southern Interior, changing the landscape and its ecology. Broom has escaped cultivation and continues to spread throughout the Central Kootenay. You may have noticed the thickets of bright yellow flowers in Nelson area, Riondel, and Nakusp.

Even seemingly harmless patches of broom in people's gardens contributes to the spread of this species, and residents are encouraged to remove plants on their property. Small seedlings (less than a pencil width) can be pulled when the soil is moist. Larger plants must be cut down, preferably in May when the flowers are out but they have not yet gone to seed. It is important to try prevent plants from going to seed as this is the major method of spread. Broom does not grow well in shade, so to help prevent older plants growing back, cover the cut stump in plastic to prevent light access. It is also important to remove cut plant material from desirable areas as these old plant parts will release materials that prevent re-establishment of desirable plants.


Additional Information:
www.agf.gov.bc.ca/cropprot/weedguid ...

Invasive Plant Profile:
Scotch broom - Cytisus scoparius - 652 KB

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