Every year, after we’ve picked apples from an orchard overlooking Sudeley Castle, we move down to the vales, close to the border with Worcestershire, to gather perry pears. Each and every year we collect about 250 kgs from this one tree, which represents less than half the fruit it produces. Each and every year, for 300-400 years, without any assistance from us in the form of fertilisers, herbicides or pesticides. That’s 150 - 200 tonnes of fruit, from mother nature just doing her thing with wind and rain and sunshine. It is a thing of wonder.