By Teddylong
United Kingdom 
why are the leaves falling off my pieris forest flame?
6 Aug, 2011
Answers
That is the most likely reason. Let the hose run on it for a long time and then keep it well watered and see if that helps. We often think that it's just the flowers that need watering but shrubs and small trees can often suffer too from lack of water.
7 Aug, 2011
Lack of water?
6 Aug, 2011