It’s fair to say that landscape architects and garden designers like to talk an awful lot about the bone structure of a garden. Not that they literally mean high cheekbones, the perfectly tip-tilted nose, or a sculpted jawline. Instead, they’re referring to those qualities of a garden’s design that help it to look good no matter what the time of year. For example, beautiful, expertly constructed pathways. A well-groomed hedge. Handsome walls. A perfectly positioned, well-chosen specimen tree. Timeless paving. Plus an attention to scale and proportion, and an understanding of space that includes a nod to the notion of the golden mean or golden ratio, sometimes also known as the theory of divine proportion.