Coir, a fibrous material from the husk of a coconut, is a viable bedding for worms in vermiculture, or worm composting. This material is completely natural, holds water and also provides air pockets in the composting mixture, which benefits the compost mixture and the worms within it. Its moisture- and nutrient-retention properties mean less maintenance of the worm composting bin, and a happy, healthy environment for the worms.
Coconut coir is a bedding material used for the worms. This bedding provides a comfortable environment for worm life, creating an ideal burrowing environment that is neither too dry nor too damp. Worms need bedding to thrive and break down the food matter they’re given. Coir works well because it holds moisture without becoming hard and compacted. It’s completely natural, meaning you’re not introducing chemicals that might affect the worms or the castings they produce. Coir is processed and sold in brick form.
To use coir as worm bedding, first soak the coir in water and squeeze out the excess, like a damp sponge. Fill the worm composting bin 1/3 full with coir or a combination of coir and shredded paper or corrugated cardboard. Place the worms on top of the coir and let them burrow and get used to their surroundings for a few days. Set a piece of damp cardboard or paper on top of the bedding after adding worms.