Jennifer Sparkes writes
The message
from K contains these words:

But does no-one here grow P mume?

Happy Birthday Kay

Thanks :-)

and sorry I don't know it but it is very
attractive.

Looking through articles on it opinions do seem to vary quite
a bit.

Would the Botanic Gardens at Ness or perhaps the
horticultural department at Askham Bryan College know?
(Guess you have thought of those though.)

Possibly, but don't they have better things to do than field enquiries
from amateur gardeners? ;-)
--
Kay