Can hosta survive Minnesota winters if they are planted in pots and left...
Can hosta survive Minnesota winters if they are planted in pots and left outside?
Hennepin County Minnesota hostas
I can give a qualified "yes" to this question. If the pot is quite large and contains a lot of soil hostas may survive. You should bank the pot with hay or bagged leaves to insulate it. The most successful method would be to bury the pot for the winter, covering it with leaves or straw. As soon as the soil can be worked in spring, bring it up and the hostas will resume growing.
Whether you leave the pot above ground, or bury it, be aware that the freeze/thaw cycle is very hard on pots that contain dirt. Plastic pots may survive longer than clay or ceramic, but eventually they will crack and break.
I hope this is helpful. Please contact AaE again if you have further questions.