"Dave Hill" wrote
I have a very good Acer palmatun disectum which is around 8 years of
age, and it has had one stem die back this spring and a second now
looks as if it is going the same way, its in a 15inch pot, good
drainage.

I had a rather nice old one die during a hot summer when I forgot to water
it, and it was planted in the ground.

--
Regards
Bob Hobden