Creating privacy in outdoor spaces can be both functional and aesthetically pleasing with the right plants in outdoor plant boxes. Here are some of the best plants to consider for natural screening:

1. Bamboo: Fast-growing and tall, bamboo is ideal for quick privacy. Choose clumping varieties to avoid invasive spreading.

2. Boxwood: Evergreen and dense, boxwood can be trimmed into neat hedges for a polished look.

3. Arborvitae: These tall, narrow evergreens are perfect for year-round privacy and require minimal maintenance.

4. Privet: A classic hedge plant, privet grows quickly and can be shaped easily for a tailored appearance.

5. Climbing Ivy or Jasmine: For a lush, vertical screen, train these vines on trellises in your plant boxes.

For added texture, mix flowering plants like hydrangeas or ornamental grasses. Ensure your plant boxes have proper drainage and are large enough to support root growth. With the right selection, you can enjoy both privacy and beauty in your outdoor space.