Nyctinasty, the rhythmic movement of plants in response to light changes, is a captivating natural phenomenon. If you're looking to showcase this behavior in outdoor plant boxes, certain species stand out for their dramatic and observable movements.

1. Mimosa pudica (Sensitive Plant): Known for its rapid leaf-folding response to touch and darkness, this plant is a classic choice for demonstrating nyctinasty. Its delicate fern-like leaves close at night, creating a striking visual effect.

2. Oxalis (Wood Sorrel): With heart-shaped leaves that fold downward at dusk, Oxalis varieties like *Oxalis triangularis* are excellent for outdoor displays. Their purple or green foliage adds color even when not in motion.

3. Maranta (Prayer Plant): While often grown indoors, some Maranta species thrive in shaded outdoor plant boxes. Their leaves rise and fall with the sun, resembling hands in prayer.

4. Albizia julibrissin (Silk Tree): A larger option for spacious plant boxes, its feathery leaves close at night, offering a graceful demonstration of nyctinasty.

5. Desmodium gyrans (Telegraph Plant): Though less common, its small leaflets move in a jerky, dance-like motion as light fades, making it a unique addition.

For optimal results, place these plants in partial shade and monitor soil moisture. Their nightly movements will transform your outdoor space into a living exhibit of nature’s wonders.