I have a lot of zone 8 plants that won't survive a zone 8 Winter mainly because we always have a few instances (like the last few days) of what's definitely not zone 8 Winter temps and keep them in what I call my iffy greenhouse .. it contains all the zone 8 plants of which half wouldn't survive like elephant ears, passiflora, banana, brugmansia etc. the teens and single digit temps - plus it gives them a jump start when the temps start to warm up in the Spring. Love my babies too much to take any chances.