Nutational haptonasty is a fascinating plant movement response to touch or mechanical stimulation, making it a captivating feature for outdoor plant boxes. If you're looking to showcase this natural phenomenon, certain plants excel in displaying these dynamic movements. Here are the best choices for your garden:

1. Mimosa pudica (Sensitive Plant) – Famous for its rapid leaf-folding response when touched, this plant is a classic example of haptonasty.

2. Dionaea muscipula (Venus Flytrap) – While known for trapping insects, its rapid leaf closure also demonstrates haptonasty.

3. Oxalis species (Wood Sorrel) – Some varieties exhibit leaf movement in response to touch or light changes.

4. Codariocalyx motorius (Telegraph Plant) – Though slower, its leaves move noticeably when stimulated.

5. Biophytum sensitivum – A lesser-known but highly responsive plant that folds its leaves upon contact.

For optimal results, place these plants in well-draining soil with partial sunlight. Regular gentle stimulation can enhance their movement, creating an interactive garden display. Observing nutational haptonasty not only adds visual interest but also deepens appreciation for plant adaptability.