Thirty years ago Diane Kurinsky and her husband Steve Gross built a house on a plot of land in Wendell that included fields and woodland. The land was a blank slate where they have managed to create a domestic landscape that welcomes and invites the visitor, luring her on to one delight after another. When I drove up I parked my car in the circular drive that curves around a large ‘bed’ that Kurinsky calls the heather garden.…