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Parrot's Feather

A popular aquatic garden plant that spreads with water currents, animals, boats/trailers and fishing gear. Dense stands can stagnate water, and increase breeding grounds for mosquitoes learn more »

Zebra/Quagga Mussels

These tiny freshwater mussels clog drains, damage infrastructure, and are very costly to control/eradicate learn more »

Giant Hogweed

A towering toxic invasive plant with WorkSafe BC regulations learn more »

Purple Loosestrife

An aggressive wetland invader that threatens plant and animal diversity learn more »

Orange Hawkweed

Also yellow, these invasive plants replace native vegetation along roadsides, and threaten areas not yet reforested learn more »

Japanese Knotweed

Grows aggressively through concrete, impacting roads and house foundations learn more »

Spotted Knapweed

A single plant spreads rapidly with up to 140,000 seeds per square metre learn more »

Scotch Broom

An evergreen shrub that invades rangelands, replaces forage plants, causes allergies in people, and is a serious competitor to conifer seedlings learn more »


Weed of the Week: Purple Loosestrife

“Vibrant stands of purple loosestrife(Lythrum salicaria) that border many lakes, rivers, and wetland areas of BC are often selected by gardeners for their dramatic display of colour.” Unfortunately, this beautiful showpiece is actually an aggressive invasive plant that severely disrupts water flow in rivers and canals, and causes a sharp decline in biodiversity.

Weed of the Week: Rush Skeletonweed

Active harvest and tillage is critical to the success of farm operations, but when an invasive plant like rush skeletonweed (Chondrilla juncea)comes into the path of machinery, farmers can expect down time, loss of productivity, and if allowed to continue its spread, a drastic reduction in forage crop yields.

Weed of the Week: Scentless Chamomile

Scentless chamomile (Matricaria Maritima) is a bright cherry flower that is commonly referred to as ‘wild daisy’ or ‘barnyard daisy.’ This weed was introduced to Canada in the 1930’s. The plant is believed to have been transferred as an ornamental or contaminate of crop seed.

Weed of the Week: Scotch Broom

The 19th century brought about more than the popularity of brick ovens among bakers, consumption of imported whiskey among gold miners, and trading of ornamentals among gardeners. Trading among settlers also drove the invasion of Scotch broom (Cytisus scoparius) into North America, which, after more than 150 years since it was introduced, is still rapidly invading coastal regions of British Columbia.

Weed of the Week: Sulphur Cinquefoil

Often mistaken for marijuana and ornamental strawberry plants because of its five stalky leaflets, sulphur cinquefoil (Potentilla recta) is known among First Nations for its edible fruit and healing properties on open sores. Making it less popular, however, is its invasiveness in southern British Columbia rangelands and pastures.

Weed of the Week: Tansy Ragwort

The daisy-like, yellow ray flowers of tansy ragwort (Senecio jacobeae) give it a friendly appearance; but make no mistake, this invasive plant is highly poisonous to livestock, and one plant can produce over 150,000 seeds, allowing it to spread swiftly to new areas.

Weed of the Week: Yellow Flag-Iris

Many wetlands, ponds, lakes, and backyard gardens of southern British Columbia are rimmed with a beautiful water-loving plant called yellow flag-iris (Iris pseudacorus). Seemingly harmless and eye-catching at first glance, this plant poses a significant threat to surrounding ecosystems.

Winterize your Boat and Prevent the Spread!

It’s time to start winterizing, and for boat owners and lakeside residents, this involves removing piers, docks, and boats from the water. Beware of invasive hitchhikers!

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