Medusahead has earned its nasty name and even wildlife won’t 
graze it.

There are many reasons to hate this nasty weed

Reading Time: < 1 minute Medusahead rye is a cool-season annual grass that is rapidly invading many northwestern U.S. states. It also has the potential to invade the Canadian Prairies because it can survive very cold winters and thrive in clay soils. Similar in appearance to foxtail barley (although the seed head does not break apart at maturity), medusahead contains […] Read more



Scentless Chamomile

Weed an enemy of disturbed soils

Noxious Weeds: Scentless chamomile prolific and problematic

Reading Time: < 1 minute Scentless chamomile can be found across the province. Starland County, Parkland County, MD of Lesser Slave River, and Saddle Hills County are just a few of the municipalities with confirmed populations of this plant. Scentless chamomile is a prolific seed producer, with large, healthy plants able to produce up to one million seeds each. Plants […] Read more


Garlic mustard: An odorous invader

Garlic mustard: An odorous invader

Reading Time: < 1 minute So far, garlic mustard has only been reported in Edmonton and St. Albert. While this species has not yet been spotted in agricultural areas, early identification and response is key in preventing the spread of this biennial weed. Garlic mustard has severely invaded forest understoreys in other provinces, as it generally prefers shaded areas and […] Read more



knotweed

A highly destructive weed to be feared

Reading Time: < 1 minute Knotweed has been spotted in recent years in Trochu, Sylvan Lake, Leduc, Parkland County, Grande Prairie, Calgary, and Waterton National Park. There has also been a report of visitors to B.C. returning with a clump of roots to transplant into their garden. This prohibited noxious weed is very destructive, and can grow through cracks in […] Read more