uestion 7: Where do bananas grow? Bananas grow in bunches(called clusters) on tall plants that look like palm trees. the world. They are grown in more than 100 countries in They grow best in tropical countries like Mexico, Colombia, Ecuador and Costa Rica. Banana skin is green. As the starch in the fruit turns to sugar, it turns yellow. This is when the banana is ripe and ready to eat. Bananas give us plenty of energy and contain lots of vitamins. You may try mashed banana on wholegrain toast? It's delicious!