I planted this Autumn Blaze maple in a tree pit across from my building last September. It seemed to be doing well and dropped its leaves in early November as expected. It leafed out this spring nicely and put on about 4 inches of new growth then the leaves started turning red at the end of May as if winter was coming. See the attached picture. I guess it's been like this about two months now. The leaves are slowly becoming more red as time goes on and it's not putting on new growth nor has it dropped any leaves (yet). It's not planted too deep and we've been getting rain at good intervals so I haven't had to water it much. I'm in NJ, USA (zone 7A, I think). I suppose there's not much I can do but wait it out unless someone here tells me differently. If nothing else I'd like to know why this is happening besides just transplant shock. The ABM I planted in the tree pit next to this one did not do this. Thanks for your help.