According to the Sunset A. pal;matum should grow here and occasionally I see them at smaller nurseries sooooo........I bought a seedling off of ebay ( I know ) and it was growing like crazy. I have it under a sun shade ( 69 % ) and as it gets warmer the leaves have started burning. It never gets any direct sun ( it's some green variety anyway ). I have been using pond water ton it rather than tap water. Any of you maple geniuses have any suggestions ?