Contemporary Patio by San Francisco Landscape Architects & Landscape Designers Growsgreen Landscape Design
If this deck/patio were mine, I would add a variety of tall and short grasses to the bottom half of the surround. Grasses would add an element of sound and Zen to the space. There is nothing more relaxing that hearing grasses waving in the wind and the symmetry of the evenly spaced tall and short grasses would give it a very uniform and zen look. Add some soft candlelight on the table and you have all the ingredients for a very romantic evening.
These are the grasses I have in my front garden. They only get the plumes in the Fall when the temperature drops but I can see them waving from inside my home and it's so beautiful. Very peaceful.