Creating an acoustoelectric outdoor plant box involves selecting plants that not only thrive in confined spaces but also contribute to sound absorption and aesthetic appeal. Here are the best plant choices for your setup:

1. Lavender (Lavandula) – Known for its calming fragrance and dense foliage, lavender helps dampen noise while adding a touch of purple beauty.

2. Boxwood (Buxus sempervirens) – A hardy evergreen shrub that provides excellent sound insulation and can be trimmed to fit any space.

3. Bamboo (Phyllostachys aurea) – Fast-growing and effective at blocking noise, bamboo is ideal for creating natural sound barriers.

4. Ferns (Nephrolepis exaltata) – Their lush, layered leaves absorb sound waves and thrive in shaded outdoor boxes.

5. Sedum (Stonecrop) – A low-maintenance succulent that reduces noise pollution and requires minimal watering.

For optimal results, combine tall and dense plants with trailing varieties to maximize sound absorption. Ensure proper drainage and sunlight exposure based on your plant selections. An acoustoelectric plant box not only enhances your outdoor space but also contributes to a quieter, greener environment.