Growing microgreens in an outdoor plant box is not only possible but can also be highly efficient with the right approach. These nutrient-packed greens thrive in well-draining soil and require minimal space, making them perfect for small outdoor setups. To ensure success, choose a sunny spot or partial shade, depending on your climate, and use a shallow plant box with proper drainage. Water consistently but avoid overwatering, as microgreens are prone to mold in soggy conditions. Popular varieties like kale, radish, and sunflower grow exceptionally well outdoors and can be harvested in just 1-3 weeks. With careful attention to soil quality, light, and moisture, your outdoor plant box can yield a continuous supply of fresh, flavorful microgreens.