Creating a child-friendly outdoor plant box is a fantastic way to introduce kids to gardening while ensuring safety and fun. Start by selecting non-toxic, durable materials like untreated cedar or pine for the box. Keep the design simple and low to the ground so children can easily reach the plants. Fill the box with soft, nutrient-rich soil and choose colorful, easy-to-grow plants like sunflowers, cherry tomatoes, or marigolds to spark their interest. Add child-sized tools and decorate the box with bright paints or stickers to make it visually appealing. Always supervise young gardeners and teach them basic care routines like watering and weeding. This project not only fosters a love for nature but also encourages outdoor play and learning.