This window box alternative showcases your flowers and their pots. Cut a 1-by-12-inch wooden board so that it extends a few inches beyond the window on both sides. Measure the pot's diameter just below the lip (ours was 7 1/2 inches); divide by 2 for radius. Make a note of both numbers. Mark the center of the board with a pencil; measure out from this mark, in each direction, the length of the diameter plus 2 inches. Mark these 2 points with a pencil. Clamp the board to a work surface. Set a circle cutter to radius. Insert a drill bit into 1 mark; cut hole for pot. Repeat with remaining 2 marks to cut 2 more holes. Prime and paint board and brackets with exterior-quality finishes. Screw brackets to board and then to wall.
Circle Cutter, $33.39, Woodworker's Supply, 800-645-9292 or woodworker.com