When deep root fertilization isn’t appropriate
It’s worth noting that fertilization isn’t right for every tree.
In the summer, the winter, and when the tree is recovering from drought and certain health issues, we don’t typically recommend fertilization.
When we can’t fertilize a tree that is stressed or struggling, or else want to encourage root growth over trunk and branch growth, we usually recommend a biostimulant.
This kind of treatment promotes fine root development, improves soil structure, and increases drought and stress tolerance.