Name: Catmint/Robin PNW WA half hour south of Olym (Zone 8a)
hi, Annie! I'm so sorry to hear about your trees.
A friend of mine had a similar problem when the leader branch on her magnolia tree was damaged and she had to create a new leader branch. I'll ask her for more info about that.
"One of the pleasures of being a gardener comes from the enjoyment you get looking at other people's yards”
― Thalassa Cruso