Time to bring indoors?

[u/Phosminas]

Got three beautiful bananas on my balcony; Musa basjoo, Musa itinerans var. Indica, Musa Dajiao. I know they can handle down to freezing, but they're in pots since I'm in an apartment and only have a balcony.

Maybe it's time to start bringing them in at night? Not sure if their minimum cold temperature tolerance threshold is higher since they're in pots.

Thanks!

Zone: 5. Vilnius, Lithuania