From City Data:
http://www.city-data.com/forum/south...rees-sc-2.html
Quote:
As far as palms go, I even have some here at my home in northeast Tennessee! Hardy palms though, such as the Windmill, Sabal Minor and Needle Palm. ALL have thrived. I will post some photos tomorrow.
I checked USDA, NE Tennessee is in 6a which is the same as Toronto (6a 6b). So it looks like Windmill palms will survive in S/SW Ontario 6b/7a