No problems in my garden, but then there rarely is, even when other lily growers in the area do. You may remember us Minnesota people talking before Judith's talk began at the ORLS meeting. I have always mulched to keep the cold in; now with climate change, I mulched my garden in late January this year.
I did wonder about the pots I had overwintering in the garage. Everything was going so well last fall outside, pots drying out, ready for storage, then just before temps dropped precipitously, we had an inch of rain in one day and I didn't get the pots sheltered so they got totally drenched. I was afraid they might rot. But so far so good. They sprouted earlier than the in ground lilies, yet no frost damage either. They are on a bench elevated 6 inches, and I had put a temporary rabbit fence around them just in case. During that last cold spell when we did have freezing weather, I did drape a bed sheet over the fencing just to keep the actual frost off (like Lorn used to do), but the wind had free reign underneath.
here they are now: