QuestionsHow to growTrees and ShrubsPruningmock orange 0 Vote Up Vote Down Nuala Mahon asked 16 years ago Could you explain why my mock orange is only flowering along the bottom edges. It looks the picture of good health elsewhere. 1 Answers 0 Vote Up Vote Down Gerry Daly Staff answered 7 years ago Presuming this is a philadelphus, possiby it has been cut back higher up.