Mountain ash tree dying

QuestionsMountain ash tree dying
Mary Horan Staff asked 14 years ago

We have a mountain ash tree in our garden.Its about 14yrs.When planted by previous owners they planted it in its container which we cut away when we found the black plastic around it about 10yrs ago.Its about 6ft tall and never grew since we moved here.We put a new bed with wooden sleepers around the tree last April.The sleepers are not railway sleepers but ordinary wood.The tree looked as if it was struggling in June as there were very few leaves coming on it.The leaves are all dying now and yesterday I noticed with horror that the bark is peeling off revealing the trunk as crumbling brown.When I broke off one branch it was dead.What could have happened and is it too late to save it.The tree looks more like wild ash tree as I know them from Mayo rather than one bought in a garden centre hence my love of it.