Q.Tulips, Calla Lilies in Pots
I would like to know if I can plant calla lilies and tulips in pots for next spring? The size of the pots are 18 inches tall and 10 inches wide. Our temperature goes below -40 in Alberta, so I am scared of leaving them in ground. Can I take all my pots in the basement? It is going to be frosting weather maybe next week. I am not sure what to do.

Certified GKH Gardening Expert
These articles should help with that: https://www.gardeningknowhow.com/ornamental/bulbs/bgen/preparing-bulbs-for-winter-how-to-store-bulbs-for-winter.htm
https://www.gardeningknowhow.com/ornamental/bulbs/tulips/care-of-tulip-bulbs-in-containers-in-the-winter.htm
You can treat the callas similar to the tulips.