Transform your courtyard walled garden into a private oasis by creating a vertical garden. Install vertical planters or hanging pots on the walls of your garden and fill them with a variety of plants, such as ferns, succulents, or herbs. This innovative solution not only adds privacy but also maximizes the use of space in your garden. The lush greenery will create a calming and serene atmosphere, making your outdoor space feel like a secluded retreat. Additionally, a vertical garden can serve as a beautiful backdrop for other decorative elements, such as a seating area or a water feature.