Posted: 31/05/2017 at 22:40
Thanks for replying Fairygirl!
The shrub is about 2ft high x 3ft spread. In hindsight I think it's been sickly for a few years but was only really noticeable last summer. I suspected it was being starved of moisture by competition and full sun, which is why I moved it to a more sheltered spot in more of a woodland setting.
It also sits next to a Lutea which is very happy and I would have thought they'd both like the same conditions. It's in the ground and the soil is light and well drained, though it was planted in plenty of ericaceous compost. Was bonemeal perhaps the wrong slow release fertiliser to use?
For a while throughout our mild winter it did look as if it was recovering. I was thrilled when I saw it covered in flower buds but it's all gone terribly wrong!
The upper parts of the branches are so spindly, they don't look as if they would produce any new shoots, hence my question about pruning.
The worst thing is ... it was a birthday gift from friends!