Photonasty, the fascinating movement of plants in response to light, can turn your outdoor plant boxes into a dynamic display. Here are the best plants to demonstrate this phenomenon:

1. Mimosa pudica (Sensitive Plant) – Famous for its rapid leaf-folding response to touch and light changes, making it a star in photonasty displays.

2. Oxalis (Wood Sorrel) – Its leaves open in sunlight and close at night or in low light, creating a rhythmic daily movement.

3. Maranta leuconeura (Prayer Plant) – Known for raising its leaves at night and lowering them during the day, mimicking "praying" hands.

4. Dandelion (Taraxacum officinale) – Its flowers open with sunlight and close in darkness, offering a simple yet striking example of photonasty.

5. Portulaca (Moss Rose) – Vibrant blooms that open under bright light and close in shade or evening, perfect for sunny plant boxes.

For optimal results, place these plants in well-lit outdoor boxes and observe their natural light-driven movements. Experiment with partial shade to enhance their responsiveness. Happy gardening!