Some sellers of plants would like to stretch the limits of temperature zones so that you'll buy their plants. On the other hand, there are also companies out there with an elixir to cure your
gout and protect your plants against various maladies. In some cases they actually work.
If you want to explore growing tropical and near-tropical plants in a cold environment, then check in with our member Raules, who grows bananas and other delights in ... (dramatic pause) ... Siberia. You can locate his posts and photos here:
Bananas.org - View Profile: Raules