Kay Easton wrote:

:No. two trees of the same type will not help, you do need a different
:variety.

: Why is that? Is it because they are in effect clones?

Yes. Some varieties are self fertile, e.g. conference (a parent of
concorde), but in general you need a different variety.

concorde is good, but I've found it a shy fruiter, could be a less ideal
setting I have it in - too close against a hedge that the current
neighbour doesn't control.

good look.

Jim