Mango trees cannot grow in temperate countries. From the statement, it is evident that the mango trees prefer

Mango is very well adapted to tropical and subtropical climates. The ideal temperature range for mango is 24 -30 ^oC during the growing season, along with high humidity. A rainfall range of 890-1,015 mm in a year is considered as ideal for growing mangoes. Dry weather before blossoming is conducive to profuse flowering. 

Mango trees do not and cannot grow in temperate countries like Canada and Germany.