Banana trees are not particularly exotic. When I was young, we had several large banana trees growing on the side of our house. In the summer, if given enough water, you could sit and watch them grow. The grew inches in an hour. We did get some bananas but Phoenix, Arizona is too hot and dry to actually produce an edible fruit unless the trees were in an enclosed and watered area. These bananas were growing the central part of a large hotel in Liberia, Costa Rica.