Brugmansia Yellowing and Losing Leaves
I'm looking for help for our Brugmansia. For 15+ years our Brugmansia has thrived in front of our house. This year it started massively losing leaves after a hot summer. I'm looking for a way to bring it back before I fear it dies. I did have an arborist who injected some nutrients in the roots and I've been watering it more assertively for the past three weeks. We are located in San Francisco.
Pictures from a few years ago and now.