Q.Can calla lily bulbs survive frost?
I live in Canada, so dug it the bulbs in fall. I had them in the garage in an open plastic pail. I forgot about them until today. It has been getting to -10 degrees Celsius at night but our garage is insulated. Will they survive if I wrap them in paper, place in plastic bags and store in a cool dry place?
Move them to a cool dry place that is about 50 degrees F.
Any colder and the bulbs will likely freeze.
Keep an eye on the bulbs to watch for any size of rot. If they are soft and mushy it would be best to dispose of them.