Creating a mini conformal field theory (CFT) display in an outdoor plant box is a unique way to merge physics with gardening. Here’s how to do it:

1. Choose the Right Plant Box: Select a sturdy, weather-resistant box with enough depth to hold small objects and plants. Terra cotta or wooden boxes work well.

2. Incorporate Symbolic Elements: Use small pebbles, sand, or moss to represent quantum fields. Arrange them in patterns that mimic CFT diagrams, such as concentric circles or lattice structures.

3. Add Educational Labels: Label each element with brief explanations of its role in CFT, like "scalar field" or "conformal symmetry," using waterproof markers or engraved tags.

4. Integrate Living Plants: Plant low-maintenance species like succulents or herbs around the display to symbolize growth and energy flow in quantum systems.

5. Weatherproof the Display: Seal labels and delicate parts with clear waterproof coatings to protect them from rain and sunlight.

This project not only beautifies your garden but also serves as a hands-on educational tool for exploring advanced physics concepts in a tangible way.