I'm just wondering...if I cross bred a laceleaf Japanese maple from a warmer zone, to a Korean maple that is hardy to my own zone, would the Japanese maple survive? All I'm saying is, if I took part of a plant that isn't hardy inn our zone and grafted onto something that is, would the part that I grafted in survive? The reason I ask is because Japanese maple likes a temperate zone 8 or 9, but I think Korean can handle 3b right? Or if I used some other maple even.... so would the root system from one be able to strenthen the japanese maple, or would the top grafted maple die from the cold and the bottom stay alive? I know it's weird but I'd like to know.