Belgravia House in London by Todhunter Earle. Even though this is a rooftop garden, the design show would be excellent for any long, narrow yard. Great way to break up the space by making different "zones"!
Plants and timbers. What a great look! I don't have a spot like this, but why not just do this somewhere in your yard against a fence even with a garden area. Nice to have your herbs separated from other plants anyway.