(Question)
Is it possible to graft Japanese maple on another maple root stock to increase hardiness and cold tolerance?
Thanks
(Answer)
Most commercially produced Japanese Maples are grafted onto a hardier root stock so the answer to your questions is a ‘yes’.
If you google ‘Japanese Maple Grafting’, there are many good resources available to show you how to go about doing this.
I’m attaching a link below to a Toronto Master Gardeners Growing Guide for you to read about Japanese Maples and their care.
Good luck.