Hoja santa (Piper auritum), also known as Mexican pepperleaf, is a versatile and aromatic plant often used in traditional Mexican cuisine. When cultivating hoja santa in outdoor plant boxes, selecting the right companion plants can enhance its growth, flavor, and overall garden aesthetics. Here are some of the best plants to pair with hoja santa:

1. Epazote (Dysphania ambrosioides) – This pungent herb thrives in similar conditions and deters pests naturally.

2. Cilantro (Coriandrum sativum) – A fast-growing herb that complements hoja santa in both flavor and shade tolerance.

3. Sweet Woodruff (Galium odoratum) – A shade-loving ground cover that helps retain soil moisture.

4. Lemon Balm (Melissa officinalis) – Adds a citrusy aroma and attracts beneficial pollinators.

5. Ferns (Nephrolepis spp.) – Ideal for creating a lush, tropical backdrop in shaded plant boxes.

For optimal growth, ensure your outdoor plant boxes have well-draining soil and partial shade, as hoja santa prefers moist, sheltered environments. By incorporating these companion plants, you can create a thriving, multi-layered garden that’s both functional and visually appealing.