While you were once constrained by the selections available from your local nursery or greenhouse, that is no longer the case. Now it is possible to obtain any sort of exotic plant species you may have an interest in growing.
This has become especially useful now that so many people have greenhouses on their properties. You are no longer held captive by your specific grow zone. If you want to grow bananas in Alaska, you can give it a try. You might not succeed but making the effort is for you to decide, not same all-powerful nursery dictator who doesn’t think you should attempt it.
All you need is a list of online plant nurseries who will ship you a banana plant to your home address and there are plenty of them out there. A little research on how to grow things and you’re all set.