M. Frary
Bonsai Godzilla
If its an open porch you should be okay.
It's closed. Like I said it's on the north side of the house. It won't warm up in there too bad. No sunlight hits it and the trees get put in there frozen in an open top box mulched in.
If worse comes to worse and they do come out of dormancy I have 3 400 watt and 1 1000 watt metal halides to put them under and grow them inside like tropicals.