I do not have much winter at all but I still loose a few plants almost every year that just don't make it, three or four this year. I still have one I am keeping an eye out for any growth, "Orchid Gilded Ruffles". I got it back in 2016, and it has never bloomed. Last year it developed very early buds and they all fell off later. Then the plant never looked healthy the rest of the year. I moved it to a new location and it showed some new growth late last year, then died back twice. This year so far no sign of life.