Dave Poole muttered:

I must put in a
word for the Tibetan cherry - Prunus serrula.

Some kind person put one of these in our garden about 20 years ago and you
are quite right, it's truly lovely.

However, how much longer will it be around for us to enjoy? Other cherries
I've had seem to succumb after around 30*40 years from one thing or another,
and I'm wondering whether to get a junior partner to take over when it's on
it's way out.