I have a gap about 8 - 10 feet wide at the foot of a sheltered, south-facing wall about the same height. There's an apple tree espalier on one side and a double plum tree (two varieties badly grafted together and untrained until I started on it last year) on the other. I'd like to put a pear in the gap.
Is there room for the two trees I'd need to pollinate each other? Someone suggested interleaving espaliered branches to save space - good idea? What would be good varieties?All suggestions gratefully received