No winter protection is required in your zone:-) In fact, I'd move the tree out into the weather so it can receive any natural rainfall (easier than remembering to water regularly). The only concern I'd have would be exposure to strong winds and that would be more focused on when in full leaf rather than dormant.

Thanks for the advice. The trees still has the majority of its leaves, but I suppose they'll fall off any time now. I'll move it out into the open.

Pam always gives good, and well-considered advice. In case you get any prolonged periods of rain, especially if your plants are in a peat-based or other heavy soil, you might want to consider setting the plant up off the ground & inserting a wick into the drain hole to help drain any excess water. Tilting your container(s) at a 45* angle also reduces considerably the volume of perched water they will hold when the soil is saturated.

Al