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Dandelions are a part of Edmonton's natural landscape and their presence peaks through May and June. Residents will notice dandelions on City roadways, parks and boulevards.

How the City Controls Dandelion Growth

The City works to prevent the spread of dandelions by mowing and trimming turf, with an extra mowing cycle during peak growing season.

To ensure the safety and usability of our sports fields, they are assessed and treated with a low-risk herbicide (iron chelate) as needed. The condition of many of these fields are also improved with top-dressing and aeration. Dandelions and other weeds on roadways and in parks will be mowed according to current practice.

Iron chelate is one of the safest broadleaf weed control options available as it dries quickly, does not have a strong odour, does not leave a chemical residue on the grass, and poses negligible health or environmental risks. Grass growth will not be affected. Treated weeds turn a dark red-black colour, but they are safe to touch.

Dandelion Treatment on Sports Fields

Fields should be avoided during spraying, but they are safe to use when dry - between 30 minutes and three hours after application, depending on weather. Signs will be posted to advise people when the fields are being sprayed.

How You Can Control Dandelions on Your Property

City of Edmonton bylaws do not prohibit dandelions on private property.

As a property owner, you can control dandelions by:

  • Mowing your lawn regularly
  • Cutting weeds before they seed can keep them under control
  • Routinely pull small patches of dandelions out of the ground by hand
  • Keeping your lawn healthy — Healthy lawns make it difficult for weeds to seed and grow on your property

For More Information

311 Contact Centre

Online Contact 311 Online

In Edmonton: 311
Outside Edmonton: 780-442-5311

TTY 780-944-5555

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