I've heard it said that the middle son is the one that turns out to be most like their father, and in my case that has turned out to be true. Both Dad and I were the middle sons of three boys, each brought up by a father who was barking mad - and at an early age we both found that horticulture was the life for us. My dad's first memories were of the Second World War, whereas mine were of the swinging sixties. That said, our lives seemed to...