We thought about it a bit and realized it’s all

biodegradable and that the cat fur would be an excellent source of various nutrients for the soil. It also may help keep gophers and moles away because we are certain there would be some smell of the cats on it, even if we can’t smell it.

Kind of like putting human hair on a garden to keep deer away or using zoo poo to fertilize with to keep all sorts of animals away from your garden.