Sometimes I cannot believe how ass-backwards the city of Calgary is. There is a law in Calgary (although I cannot find it on their website) that states if there are too many dandelions in your yard, the city will douse it with herbicide and then bill you for it. Concerned for the parks? Not to worry, the city is already dousing them with herbicide as we speak. I think this is part of their "Healthy Yards Program" As long as it looks good we don't care how many chemicals we have to put into it. Thanks Calgary!