Your plant is extremely hardy, so I would let mother nature tend to it. She makes a better babysitter than us or the garage. I'd leave it outdoors, buried in the garden to the soil line. If you're worried about the container cracking, you can just put it in a nursery container for the winter, and pot back into your favorite pot in spring when you dig it up.

When you repot, cut away most of the bottom 2/3 of the roots & add fresh soil to the container so the planting is at the height you like. Don't worry, it won't miss a beat at this treatment. I fight against this plant in my containers all the time.

Al

Thank you Al. I have it buried now, and might put a little fence around it and fill with leaves - maybe the pot will survive too. Ms.B

Keep the leaves dry or you'll risk fungal issues from the combination of high humidity, no light, and lack of air movement as the leaves get wet & compress.

Al