The rest of the beds are rectangular split-faced concrete blocks mortared together with a capstone wide enough to sit on when gardening or to serve as extra seating for parties. Constructing them with efficient drip irrigation already in place makes watering the beds no chore at all.
It's amazing how the narrow garden is visually widened by angling the terraces away from the house and setting the rectangular raised beds—filled with flowers, fruits, vegetables, and herbs like purple sage, chives, and borage—on a diagonal.
Learn How to Build Concrete-Block Raised Beds
like the ones shown here.