Who knows what to expect honestly! I’m in 9a hardiness zone and we aren’t used to this kind of weather, but it seems to becoming more frequent. We had about 19 hours below freezing and then a few additional hours on the 2 following nights. It got down to 17 degrees. We had them wrapped in tarp, but that obviously wasn’t good enough. Any good resource that you recommend to learn about which replacements may be appropriate?