http://www.mississauga.ca/portal/discover/parksandgardens?paf_gear_id=9700018&itemId=200018
I think my daughter had a school trip here once.
Port Credit area on Mississauga.
"Peak Blooming Time at the Gardens
May 29 - Jun 12
Over the next week, rhododendrons and azaleas are expected to be at peak blooming. Some early bloomers are finished for this year but many more are set to open their buds over the coming days. Be sure to cross the bridge(s) to see the 7+ beds in the East Garden."