Answer: I think your best bet is to bring them into a sheltered area such as a garage where they can be stored very cool but not quite frozen. Leave them outside until they go dormant. Keep the soil barely damp (water just enough it does not go bone dry). In the early spring, take them back outside so they can wake up naturally with the season; resume normal watering and fertilizing as they come out of dormancy. For the roses in particular, strip off any remaining foliage before storage and prune them in the spring as you normally would when you take them outside again. Best of luck!
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