COCOAFAIR Cocoa Mulch is an excellent organic mulch, which helps retain moisture and reduce weeds in the garden. It also increases the available food source in the soil, not only for the plants but also for the beneficial bacteria and fungus that naturally reside in the soil and make part of the microbiome of all living things. Cocoa hulls contain many of the same elements found in natural fertilizers but are less expensive to use because they are 100% biodegradable and free from chemicals, salts and other additives.