Yes, you can absolutely use an outdoor plant box to grow plants for natural fabric dyes! This sustainable approach allows you to cultivate dye-producing plants like indigo, madder, weld, and marigold in a compact space. Outdoor plant boxes provide excellent drainage, controlled soil conditions, and easy access for harvesting. By choosing the right plants and maintaining proper care, you can create vibrant, eco-friendly dyes for textiles. This method is perfect for small gardens, urban settings, or anyone interested in sustainable crafting. Start your dye garden today and explore the colorful world of natural fabric dyes!