I've noticed that my Japanese snowbell tree hasn't started to bud or grow leaves even though my two neighbours' trees have been growing already for several weeks (see photo; one neighbor's tree with lots of leaves growing beside). I also tried a 'scratch test' on a number of central branches/the tree trunk and didn't find a green living layer under the exterior bark. Is there still hope for a tree like this and is it worth waiting out further? Or is it time to think about taking the tree down now?
The others are not very advanced looking themselves - you'll just have to wait a bit and see if yours comes along a little later.
Be grateful if it has!! I deeply regret planting two in our streetside bed. They seed bountifully and the seedlings are tenacious. I wish now I had planted one of the more delicate dogwoods!