Some of the leaves on the bush are yellow and fall off when touched gently. We are now in the first week in April and we have had a very wet 2 months of winter and spring weather. The soil is neutral but I do feed with acid fertilizer and incorporate compost - am I doing enough ? Does the plant need to be moved to a pot with eracacious soil ?
Yellowing leaves could indicate watering issues, disease, pests or nutrient deficiencies.
This article will help you.