Add charm and privacy to your courtyard walled garden by incorporating a trellis with hanging plants. Install a trellis against one of the walls and hang potted plants from it. Choose plants with cascading foliage or flowers, such as trailing petunias or English ivy, to create a lush and vibrant display. The trellis not only provides privacy but also acts as a decorative focal point in your garden. This simple yet effective solution adds a touch of greenery and creates a cozy atmosphere in your outdoor space.