Low, almost flat plantings seem like the perfect choice for this deck, where every inch of the view is worth a gaze. The layout of the beds, along a path that extends from one end of the house to the other (from Bay views to city views), encourages wandering. We lost track of time enjoying the wide variety of succulents, among them a few of our favorites, like the flat dinner-plate aeonium, and the variegated "hens and chicks" with its sunset colors. Grasses add an interesting contrast in texture.
For a roof garden, where drainage is inevitably an issue, drought-tolerant succulents are an excellent choice. Most of the plants here appear to be installed right in their plastic pots, set very close together and disguised with moss; we're not sure if this is because it's a temporary installation, but it seems like a great DIY idea for a renter!
You can see more of Suzman & Cole's work online, and of course if you're inspired to try something similar at home, Apartment Therapy's archives contain a wealth of succulent inspiration. (Okay, so we might be a bit obsessed.)
More details on the Decorator Showcase here.