Dwarf Elstar apple tree
I live in the centre of a small town in Warwickshire. For about 15 years I’ve had an Elstar dwarf apple tree which has always fruited well - best year was 2020 when I had 180 apples! However, last year although covered with beautiful blossom in April, it didn’t produce a single apple!
I don’t know if there is compatible pollination partner growing somewhere nearby. If not, could this be the cause and can I buy pollen and pollinate by hand?