I acquired a Trident Maple last spring and it did fine through the year and into the fall. I overwintered it in my unheated garage by a window with morning sun. By Feb it was pushing new growth and once we were past much freezing weather I moved it outside. I’m in zone 7 (Tennessee) and the tree is planted in spagnum moss mixed with wood chips.
The issue is that all of the new growth is dying shortly after it pushes out. The lead tips turn brown and almost appear to ‘rot’. I suspect I overwatered and the spaghnum is holding too much water. I haven’t watered it in about 2 weeks to let it dry out and pulled the upper layer of soil to try to help drying.
Any other ideas?