Creating a mini tea garden in an outdoor plant box is a delightful way to grow your own fresh tea leaves and herbs. Start by selecting a spacious, well-draining plant box and filling it with nutrient-rich soil. Choose compact tea plants like Camellia sinensis or herbal varieties such as mint, chamomile, and lemon balm. Arrange the plants with taller varieties at the back and shorter ones in front for optimal sunlight exposure. Water regularly, ensuring the soil stays moist but not soggy, and place the box in a spot with partial to full sunlight. With minimal care, your mini tea garden will thrive, providing fresh ingredients for homemade teas year-round.