I adored these gardens!! This year (2013) is the mosaicultures internationales montreal (MIM) - basically the Olympics of gardening. This only happens every four years and each time in a different country so if you ever want to go to the gardens it should be now! The gardens from each country were very beautiful and full of meaning... we had a guide (can get a free guide in the morning) but the plaques near each garden tell the stories of each garden well. It is more busy on the weekend so go on the weekday if you can and either go early or in the later afternoon. Also - your entry fee gets you into the insectarium which you can visit on a separate day - my 2.5 yr old nephew really loved both the gardens and the insectarium so it was well worth it! Also - cheaper if you have an access montreal pass (need to be a MTL resident) or if you are a student.