Banana tree growing well - thank you for asking
Yes, this is a hardy banana tree - Musa basjoo - growing in the front garden. The darn thing got a tad too big for the sunporch last spring so I tossed it outside this summer (after frost) to see what would become of it.
It has survived quite nicely with only two waterings this summer in a miserable soil that is somewhere between terrible and ungrowable. I mulched it with wood chips and told it to do its own thing out there.
So it has. It has even produced a few pups at the base.
But I'm not likely to propagate it this fall as I have enough to do - I'm going to let 'er go and do its own thing.
This banana tree is supposedly rated as a zone 4-5 so (in theory anyway) it is hardy in my garden (more or less 9 years out of 10 with a margin of error of 50%)
In short. Maybe.
We'll see next spring if it comes back.
If it does, it won't have bananas or if it does, you can't eat them because they're small and fibrous.
So why am I growing it. (the official answer)
And that's enough of a reason to grow anything in the garden.
But if I were being honest - I'd say because I want to and because nobody else around here has one. (insert big sound of gardener laughing at himself).