50s and 60s are way to warm for storing basjoos. Here, they even start growing in the 40s outside.
The best bet is still, in my opinion, a leaf or hay-filled cage. If the main stem dies you will still have multiple shoots coming from the base in spring. That's better insurance than a single small plant in a crammed pot sitting in the garage. I would almost be tempted to say that bananas belong in the ground, not in pots.
Erlend
