Those look like olive trees? Grasses and agaves -- a drought-tolerant alternative to lawn in hot, dry climates. Oehme Van Sweden drought tolerant demonstration garden with grasses and agave at Cornerstone.
Cool colours and beautiful textures with small leafed Westringia and Santolina(?) by Secret Gardens of Sydney. Not only do fine-leaved plants withstand heavy coastal winds, but they look great when mass planted adjacent to other fine-leaved plants.