Bone meal really isn’t hiding anything in its name. It’s made of discarded animal bones, the leftovers of the meat industry. They’re heat treated to kill off any nasties that may be lingering and ground into a fine-grained meal. It sounds pretty grim, but it’s actually a very thrifty and sustainable choice. Those bones don’t have many other uses, so returning them to the land, one handful at a time is a far more dignified choice than tossing the lot into landfill. It’s a good choice for the Earth and your garden.