Creating a mezcal garden in outdoor plant boxes is a fantastic way to blend functionality with aesthetics. The key to a thriving mezcal garden lies in selecting plants that mimic the arid, rugged conditions of traditional mezcal-producing regions. Here are the top plants to consider:

1. Agave Plants: The star of any mezcal garden, agave species like Agave angustifolia and Agave potatorum are drought-tolerant and visually striking. Their rosette shapes and spiky leaves add a dramatic touch.

2. Dasylirion (Desert Spoon): This hardy plant thrives in dry conditions and complements agave with its slender, grass-like leaves.

3. Yucca: Known for its resilience, yucca adds height and texture to your garden with its sword-shaped leaves and tall flower spikes.

4. Sedum (Stonecrop): A low-growing succulent, sedum is perfect for filling gaps and adding variety with its colorful foliage.

5. Echeveria: These rosette-forming succulents offer a softer contrast to agave and yucca, with their pastel hues and compact size.

For optimal growth, ensure your outdoor plant boxes have excellent drainage and are placed in full sun. Use a gritty, well-draining soil mix to prevent root rot. With these plants, your mezcal garden will not only look stunning but also require minimal maintenance, making it a perfect choice for busy plant enthusiasts.