Banana is a tropical/subtropical plant, which best grows in warm, frost-free, climate, and is commercially grown from the equator to latitudes of 30 degrees or more.
The biggest Banana producing country in 2016 was by far India – almost 30 million tons- , followed by China and Indonesia. Brazil and Ecuador complete the top five. While India is currently producing about 28% of all Bananas, it only exports about 0.1% of their harvest.
European countries that produce bananas commercially are Spain, Greece, Italy, Portugal and Turkey. Until the 1960 Iceland was among them, due to their greenhouses heated with geothermal energy. There are still some greenhouses producing bananas, but not on large scale.