Nutational photonasty is a fascinating plant movement triggered by light, where stems or leaves exhibit rhythmic, swaying motions. For outdoor plant boxes, selecting species that vividly display this phenomenon can enhance both aesthetic appeal and educational value. Here are the best plants to consider:

1. Sunflowers (Helianthus annuus) – Known for their heliotropic behavior, young sunflowers track the sun’s movement, showcasing clear nutational photonasty.

2. Mimosa pudica (Sensitive Plant) – While famous for thigmonasty, its leaves also respond subtly to light changes, making it an intriguing choice.

3. Morning Glory (Ipomoea purpurea) – Its twining stems exhibit nutational movements as they seek sunlight, ideal for vertical plant boxes.

4. Bean Plants (Phaseolus vulgaris) – Their climbing tendrils perform nutational sweeps to latch onto supports, driven by phototropic responses.

5. Oxalis (Wood Sorrel) – Some species fold leaves at night and reopen them in daylight, demonstrating a mix of photonastic and nyctinastic movements.

For optimal results, place plant boxes in areas with varying light exposure to observe these dynamic behaviors. Nutational photonasty not only highlights nature’s adaptability but also creates a captivating display for gardeners and science lovers alike.