We have a rowan at the end of our garden, no idea how old it is as it
was there when we moved in but it's about 25 feet tall. 3 years ago it
did really well but the last 2 years it has hardly had any leaves and
they have shrivelled quickly. There's a very large oak tree there too
as well as assorted shrubbery.
Any advice - is it maybe just old age? Would it benefit from pruning
or coppicing? There are quite a lot of dead branches and it just
doesn't look that healthy in general.