Coco-Fiber Planting Medium

The perfect sterile growing medium. Use this expandable brick of all-natural coconut fiber (coir) to enhance your soil, making it easy for plants to stretch out their roots. Loosens hard clay soil and adds water-retaining fibers to sandy soil. Resists compacting and remains porous for air circulation. Made from coconut husks. Expands to over 2 gallons when you add lukewarm water as directed. Each brick breaks down into enough coir medium for approximately 4 trees.