OlBlue

I don't believe you can. or I've never heard of anyone using sugar Maple on acer palmatum. I have read of using Sugar maple and acer rubrum, red maple. You could pose this question to the folks on The Maple Society webpage . There are some really,truley, longtime maple guys that hang out there, and I'm sure they would know. I would use small green palmatum seedlings or cuttings to do an approach graft,at root level. I have had good results in the spring, by rootpruning the tap roots or vertical roots, and wounding the area where you want roots. Apply spaghnam moss, and soil. Basicly you are setting up an air layer, or ground layer I guess. Anyway green Maples usually respond well and put out many radial roots. Hope this helps a little bit. Blue