my best butternut now has 8 fruits, 5 are large and the other 3 are getting bigger rapidly. I took one fruit off to eat today. This plant is the one growing amongst the apple trees and semi shaded at times, I have never fertilised the apple trees. Whatever combination is causing such a vigorous and healthy plant, I don`t know. It has travelled far and wide and I cut the growing tips two weeks ago. It was a sarah raven seed. I am planning on growing two harrier next year, keeping a spare to one side. I did transplant onto a crumbly small mound surrounded by a moat and oh yes I did water in the moat a couple of times with comfrey and a few other times with water, while the plant was small, so I did slightly fertilise in the beginning