Cocoa bean hulls, which are a byproduct of cocoa bean processing, make a handsome, dark brown mulch with a fine texture. A sweet chocolaty scent is also discernible when first applied.

However, cocoa hull mulch can compact easily and form a crust, which prevents water flow, so it may need raked out from time to time.

It is also highly toxic to pets, if ingested, and can cause GI and neurologic distress in cats and dogs. Avoid using if your pets are ever left unattended in your garden.

Best for: Flower or landscape beds where pets will not have access

Source: veranda.com