I've been given a Prunus mume for my birthday, and want advice on
growing it on heavy clay soil in a frost pocket 400ft above sea level in
Yorkshire.

From my reading so far, it needs a sheltered warm position on well
drained soil. I've got one position in the garden which might provide
that, but I'm wondering whether I might be better off growing it in a
huge tub
be so it could be on the south facing terrace (where the fig is). Or
even in the greenhouse? But I'm worried about letting it dry out too
much by mistake in summer.

Any thoughts?
--
Kay