Hello, Some days ago I found this information and picture http://summershollow.blogspot.com/2009/10/strange-fall-colors.html about acer shirasawanum â€˜ruby redâ€™. It seems to be a new and widely unknown shirasawanum cultivar. The few information sounds very interesting because it seem to be a red acer shirasawanum which seem to me very unusual! I only found few more information by greergardens, but all in all very little. Is there anybody who have experience with this plant and who can tell something more about it? @Kaitain4 Thank you for your explanation for winter grafting, I red the Thread yesterday, it is the most interesting thread at this time in the forum and with very precious information for acer-enthusiasts. Thanks for sharing us.