Growing dwarf nutmeg plants in an outdoor plant box is possible with the right conditions. Nutmeg (Myristica fragrans) thrives in tropical climates, but dwarf varieties can adapt to container gardening if given proper care.

Key Considerations:

1. Climate: Dwarf nutmeg prefers warm, humid environments (60-90°F). If you live in a cooler region, place the plant box in a sunny, sheltered spot or bring it indoors during colder months.

2. Soil: Use well-draining, fertile soil with a slightly acidic pH (5.5-6.5). Mix compost or organic matter to retain moisture.

3. Sunlight: Provide partial shade to full sun (4-6 hours daily). Avoid intense midday sun to prevent leaf scorching.

4. Watering: Keep the soil consistently moist but not waterlogged. Mulching helps retain humidity.

5. Plant Box Size: Choose a deep, wide container (at least 18-24 inches) to accommodate the root system.

With patience and attention, your dwarf nutmeg can yield aromatic seeds and mace in 5-8 years. Happy gardening!