This is such exciting news! The house is beautiful and the garden design you've chosen really does suit the house perfectly.
I'm so glad the new owners warned you of their plans for the garden and allowed you to take whatever you wanted. Most people courteously leave their plants behind for the new owners and later learn that the new owners never had any interest in caring for them. It can be heartbreaking.
You've done an incredible amount of work in just a few months. Amazing!