Q.What is the damage on plant leaves?
I bought a Daphnis plant but it has had a strange looking damage on leaves. I’ve sprayed it with pest killers but it doesn’t seem to go away. It is very slow growing also. Can you tell me what is wrong with it?

Certified GKH Gardening Expert
Unfortunately, diagnosing these can be a bit difficult. They can die quite suddenly, and for no apparent reason.
The first thing is to be sure and provide the exact environment that they need. This includes making sure that the soil dries out pretty thoroughly before receiving water. Overwatering will be the most common cause of failure.
This article will offer more information on what their environmental needs are: https://www.gardeningknowhow.com/ornamental/shrubs/winter-daphne/daphne-plant-types.htm