If peach and nectarine cross pollinate, what is the fruit results on each tree? some people advise not planting next to each other. Good advice or not?
Certified GKH Gardening Expert
Technically, peach and nectarine are the same fruit. There is literally only one gene difference between the two (which results in a fuzzy or non-fuzzy fruit). Beyond this, cross pollination only affects the seeds (the fruit of tree planted from the seed would be affected). It is only something you need to worry about if you plan on growing trees from the peach or nectarine seeds.