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.
In December 2017, Council approved increased measures to address dandelions and other broadleafed weeds. These measures included increasing the mowing cycles to a weekly level between May 15 and July 1, 2018 and a targeted use of iron chelate on City sports fields. The condition of many of these fields will also be improved with top-dressing and aeration. Dandelions and other weeds on roadways and in parks will be mowed according to current practice.
Dandelion Treatment on Sports Fields
Beginning on May 14 iron chelate, a low-risk herbicide, was applied to about 60% of the City’s 1,465 sports fields. It will take 2-3 weeks to complete treatment.
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.
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