Coco coir is a growing medium made from the fibrous husk of coconuts. When compressed into bricks like this, it expands several times its size once water is added. It’s commonly used to improve soil structure because it holds moisture while still allowing good airflow to plant roots. Coco coir helps prevent soil from compacting, which supports healthier root development. It’s pH balanced, biodegradable, and naturally resistant to many soil borne diseases. Gardeners often mix it with compost, per