Answer: In my experience it most probably will not survive winter outdoors in a container. If you leave it outside during the holiday season for example the roots will freeze solid and/or undergo freezing and thawing. This is stressful and ultimately kills the plant, either right then or as a delayed reaction during the following summer. You might be able to keep it for at least one season by storing it in a cool place, possibly a cellar, where the rootball does not freeze. Put it in storage in late fall and bring it out in early spring so it can wake up naturally with the season. Water just enough that the soil does not go bone dry while it is in storage. However, keep in mind it is never easy to keep a hardy evergreen long term as a container plant under home conditions. They just seem to lose vigor and decline.
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