I would like to plant 3 or 4 fruit trees in my garden. I had a look on the RHS website and my head almost exploded trying to work out chromosomes, cross pollination and self pollination. I would like an apple tree, cherry and another type but do I have to plant 2 of each so they can pollinate each other? I was hoping to just pick up a few trees from b and m and then sit back and wait for a harvest of fruit but it seems to be far more complicated.