starting more grapes from hardwood collected from a friend

starting more grapes from hardwood collected from a friend. it’s challenging to grow grapes in zone 3 but it can be done with the right conditions and varieties.. for years I had given up on grapes but now have a renewed interest. going to attempt rooting in my grow room in deep pots with the tops bagged, to be transferred to a greenhouse next month. We hit -7C last night so I’m not brave enough to put anything green and leafy in the greenhouse yet, though all the germinated seeds out there were fine.