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"!
Planting in between the sidewalk and street. Allium giganteum (Allium 'Globemaster'), steppe sage (Salvia memorosa 'Caradonna'), catmint (Nepeta x faassenii 'Walkers Low') and peat reed grass (Calamagrostis x acutiflora 'Karl Foerster').