The productive garden at Lord Rothschild's private house, Eythrope in Buckinghamshire, is legendary in the garden world for the excellence of the gardening and as a haven for traditional techniques that might otherwise be lost. Under the leadership of the renowned head gardener, Sue Dickinson, now retired, and the current head gardener, Suzie Hanson, this garden works on a scale that is now rare, producing, year-round, all the fruit,...