Stopping spraying and allowing plants to self-seed was the first step in the gradual and brilliant reinvention of the walled garden at Serge Hill, Hertfordshire, the home of Kate Stuart-Smith. Non Morris paid a visit; photographs by Jason Ingram.
When one thinks of the garden at Serge Hill, what comes to mind is a handsome, white-painted Regency villa, its generous windows and comfortable verandah looking down over rolling Hertfordshire parkland — these days, hazy…