Until winter, yes. Treat as annuals or dig 'em up

I threw some old Maranta out onto the compost pile last year and its growing out there now. Its smaller than it was but definitely survived the winter. I think it went dormant then came back. Its under the canopy of a large Beautyberry. I was surprised.

So there's hope. Hmmm. I have two so perhaps I'll leave one out with lots of mulch and bring one in when the time comes. Hedge the bet, so to speak.
Thanks for both replies!