Thinking Ahead To Winter

jo schmoo

just running my winter plan for my trees by you to see if it will work. i am making a cold frame and instead of digging a hole i am just going to put my trees in one of our window wells for our basement (the window well is outside) and put the cold frame over it. i am in zone 5 wisconsin and it gets to about -10 F (sometimes colder a lot of times a little warmer). the window well is south facing. it is 3/4 shade and because our basement is heated hopefully it will kind of heat the cold frame up a bit. if it gets too warm i can open the cover of the cold frame. if it is too cold i can cover the trees in cedar shavings and if that is still too cold i can put a heat mat in instead of the cedar shavings which would make the air 10 F warmer. i can also use both if it is still too cold.
i have an amur maple (i know that will definitely make it) it is hardy to zone 2 or 3
i also have a japanese maple atropurpureum which is hardy to zone 5 (which is mine) but it will have been just airlayered and i am worried about the young roots.
will this work? do i need to do something more (i can't think of anything else)?
thanks

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History stopped being interesting when people stopped killing each other with swords.
-Me during US History class

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jo schmoo

will it work? yes? no? maybe so?

__________________
History stopped being interesting when people stopped killing each other with swords.
-Me during US History class