Curling and tiny holes of Choisya ternata leaves
I purchased the choisya ternata seedling late January this year from Waitrose garden. Please see the pictures attached. When it arrived, I found tiny brown holes on the new growth leaves, which are also curling. I didn't return it and planted it into the courtyard in early February. So far, the plant suffers from frost damage with some bubbles on the leaves and show no sign of improvement on the shot hole symptom.
As I am really a new-starter for gardening, it will be extremely helpful if anyone can share me some suggestions.
Thanks a lot in advance!