Growing dwarf cacao plants in an outdoor plant box is possible, but it requires careful attention to their tropical needs. These compact varieties, such as *Theobroma cacao* 'Criollo' or 'Forastero', thrive in warm, humid conditions with filtered sunlight.

Key Considerations:

1. Climate: Dwarf cacao plants need temperatures above 60°F (15°C) and high humidity. If you live in a cooler region, consider moving the plant box indoors during winter.

2. Soil: Use well-draining, acidic soil rich in organic matter. A mix of peat moss, perlite, and compost works well.

3. Watering: Keep the soil consistently moist but not waterlogged. Mulching helps retain moisture.

4. Sunlight: Provide partial shade to mimic their natural understory habitat. Direct afternoon sun can scorch leaves.

5. Space: Ensure the plant box is deep enough (at least 18 inches) for root development.

With proper care, your dwarf cacao plant may even produce small pods in 3–5 years. While yields are modest compared to full-sized trees, the experience of growing chocolate at home is uniquely rewarding!