I have a 15-20ft JM in my front yard. Last year it appeared to be healthy. This spring it did not leaf out. On a few inside branches there are a couple leaves . On the trunk and larger branches there are tiny red buds that appear to be tiny leaves. I scratch the bark in several places and it is green underneath. From the street the tree appears to be dead. All the other JM trees in the neighborhood have had their leaves for over a month. It is now May 23rd and I have nothing. Should I wait till next spring to see what happens, or should I remove it? Is there anything I shoud be doing to improve its chances of survival. Thanks in advance.