Bighead Knapweed Leaves and Stem
Not All Flowers Are Friendly
The City of Edmonton is on the hunt for invasive weeds on public and private property. Invasive weeds are non-native plants that cause economic or environmental harm and can spread quickly to new areas. These plants can:
- Grow and spread quickly, invading crops and entire ecosystems
- Out compete our native plants
- Infest streams, riverbanks and waterways
- Reduce native biodiversity
Help Avoid The Spread of Weeds
To help avoid spreading weeds that have gone to seed, park users should:
Wear clothing, boots and gear that do not retain soil or plant material. Avoid brushed cotton, netting, Velcro and knits.
Consider dedicating a pair of shoes or boots for use only in infested sites.
Before leaving the park, clean your shoes and gears.
Check your dog for seeds and soil before leaving the park. Use a grooming brush to remove any plant material before getting into your vehicle. Check your dog’s paw pads, between their toes, in their ears and nose for any seeds. If seeds are lodged in their nose or eyes, see your vet.
The aim of the herbicide ban is to eliminate non-essential uses of herbicides on city-owned land while recognizing there are circumstances where herbicide use is required.
Learn more about the herbicide ban at edmonton.ca/herbicide.
The City employs a variety of tools to keep our green spaces in shape. We mow the grass regularly and use several different techniques to manage weeds, including mowing and hand pulling. We are always looking for new ways to control weeds and support healthy turf growth, including heat and steam treatments, biological controls and animals, like goats.
Promoting healthy turf can also help minimize weed growth. The City of Edmonton supports turf growth by aerating, top-dressing, fertilizing and overseeding grass.