Coir blocks are approx 650g and the size of a house brick. When you leave to soak they will expand to make approximately 9 litres of fibre. They can then be used for seed raising or cuttings, as a base for homemade composts, or added to aerate garden waste composts. Coir block is coconut fibre, and is used throughout the world to make rope and matting, its also used as the base for hanging baskets, COIR is a renewable resource. Our coir comes only from organically grow coconut trees and are certified by the Soil Association, the UK's leading campaigning and certification organization for organic food and farming. Our Coir pH is 5.4-6.8, which means its great as worm bedding, and also as a bedding for African Land Snails Our Coir blocks are also salt free
