Use at least three small pots, each with a thick rim around the top edge to stop the wire from slipping. We've planted ours with hyacinths. When these die at the end of spring, they can be replaced by other seasonal blooms.
Drill holes in bricks (not cement, which will crumble), using an electrical drill with a masonry bit. Push a Rawlplug into each hole, then hang the trellis using sturdy screws.
Plant up your pots, then wind garden wire twice around each pot, making sure the ends are long enough to wind on to the trellis. Twist them together tightly to secure.
Thread the wire ends through the trellis and firmly attach the pots, ensuring they're spaced equally. Tie natural twine around the rims of the pots to conceal the wire.