We noticed a few days ago that there are no leaves yet on our backyard Norway maple tree? We're in the northeast, Zone 6b, and all the other trees in the neighborhood are at least starting leaves or even in full leaf while this tree is bare and looks like it has the very earliest stages of leaf buds. Any ideas on what could be going on? I can't think of anything stressful that could have happened to kill it or stop it from growing.
It's a Crimson King maple, it was a big, well-established tree when we moved into our house 15 years ago so I'd say it's at least 25 years old.
Looks like the one in picture 4 http://www.maple-trees.com/pages/map...135=3&dir135=&