I understand that, I've seen grey pine growing 15 ft away from each other that with one pushing 40" diameter and the other at 20" that were the same age. For the most part I don't think you can get a very accurate age with drilling or calling the tree unless it's something that always grows slowly.My guess is that he's asking because you can have two Sycamore the same age and one will be twice the diameter of the other. We have blocks here in Detroit that were planted all with the same kind of tree like Gray Street on the East side which was all planted in Sycamore for the first couple blocks North of Jefferson. The difference in sizes and shapes is crazy and the conditions are the same. My neighbor has one about 85' tall but only 20" DBH and there are others nearly triple that diameter but 30' shorter in the same neighborhood.






























