Most crosses will grow indoors fine, Northern lights #5, WW, Northern Berry, Hindu Kush they all do very well indoors under lights. There are many many more that is just a few off the top of my head.

I lived in very cold climate as well for several years. The ground froze down about 16" every year. That is the frost line I was talking about. Below that 16" point the ground was warmed by the earth and did not freeze is all I was saying. 10' is a deep frost line is all?