Answer: It would be a rare year and a very protected nook next to a home for peppers to return after the winter in your zone. I think the idea of growing in containers would work fine if you can give them plenty of light in their protected winter location.
I have even had success growing them in the garden and then digging up a sizeable root ball (about 10"), pruning the tops back to 12-18" and planting them into a container for nursing through the winter, followed by replanting to the garden in spring. My, we pepper growers are a desperate, determined bunch!
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