After some advice please.
We have a very well established garden with a number of large shrubs and trees growing along the fence.
This year four established plants have died. Starting at one end and working along. It started with a palm which I'm told was likely due to a late frost. Then the red robin died next to it. Now my ornamental cherry tree is looking dreadful and has barely any leaves and now another shrub next to that is dying. These are literally all in one line next to eachother.
Does anyone have any suggestions as to what might be happening? They all seem to just be loosing all leaves.
Someone suggested it might be my neighbour (who has an issue with the height of our shrubs against the fence) poisoning them. Or could it be some kind of disease? My only other thought is that we had an extension about two years ago 2ms from these plants?
Any help appreciated xx