Found this site while looking for some answers to a happy surprise in my garden last summer. I have a 3ft. sango kaku which I bought in 2002. On one of my routine inspections I noticed a tiny 1 inch red twig emerging from the ground about 10 inches away from the main trunk. I was about to yank it, thinking it was a weed then changed my mind on the wild chance it was part of the tree-I didn't think it could be a seedling since I believed these trees are grafted, but I was unable to explain the red colour. Sure enough, distinctly maple-shaped leaves emerged as summer progressed. I protected it with dry leaves and waited. Well, I pulled away the leaves last weekend and my tiny-now 4 inch red twig is growing and I can see furled green leaves at the top which I expect will open shortly! Do you think I have a new coral bark maple which will not only grow, but survive winters on its own rootstock here in Mission, BC? Also, when should I attempt to transplant it? Excitedly awaiting any information.