You had CO in one of you posts. I guess the zone 7 is the only thing we have in common. Sounds like you got it under control though. Good luck and dont freeze. I didnt know the avatar showed location.Me? I'm in Michigan. And I just bought a small 3' x 5' x 4'h shed that I put where my outside compost/recycle trash can sits in season. It looks natural enough but I don't need it in winter. I bought a thermostat controlled switch too, that will be set to turn on a 10 watt light bulb at 30°F and a 25 watt at 20°F. That will guard against the deep lows that kill the Carolinian plants that are zone 7. I had a better and bigger arrangement years ago and discarded it because it was a big deal to store over winter. It was around the far side of my house and was a monster to get to in deep snow. This one is smaller and is right outside my back door where I can keep the sidewalk shoveled and get to it easily for watering, etc.. And it's disguised as a trash container enclosure so I don't have to move it twice a year! I am very pleased with myself to be able to keep these kinds of plants again.