Philadelphus... Advice anyone?
It seems this year that wherever I went, I found that everyone elses philadelphus have been flowering away beautifully.
Mine however, did not. At all. It is not an old plant, having been planted only last year in spring - When it flowered quite freely. It is now about 4 feet tall, but has only four main stems with absolutely no buds, no side shoots and no other branches at all. Have I done something to upset it, or is it normal for relatively young plants to give a poor show? It is looking decidedly spindly. It is one of my favourite plants, and I have never had trouble growing it before. I know that now is the time to prune it, but being as it only has 4 stems on the entire plant I'm not sure what I should do with it.
Does anyone have any ideas as to how I can bring it back to the shrub it should be?
Thanks in advance!