Coco coir and soil are different growing media. Coco coir is derived from coconut husks and has excellent water retention and drainage, but it contains minimal nutrients. Soil, on the other hand, is a mixture of organic matter and minerals, providing natural nutrients for plants. Coco coir has a neutral pH and is free from pests, while soil pH and presence of pests may vary. Coco coir is a sustainable option, while soil requires sterilization. Consider these differences when choosing a growing medium for your needs.