OK, I live in the Atlantic NE Boston area. Similar winters to Pacific NW, I think. I have a Norfolk Island Pine Tree that is in allarge pot that my wife gave me when we were dating. It is now 34 years latter and the tree is about 5 ft tall in the pot. I store it in my basement during the winter and in the summer I put it out on my rear porch. I'm not sure what to do with this. If I palnt it out doors will it freeze in the winter? I don't want to kill the tree because of the sentimental aspect. It is getting too large to move. I do clip the top to prevent it from getting taller. Seems to work in that there are no more branches coming in on the tip but it is getting wider. Any suggestions?