 These five plants are perfectly safe for your cats and dogs. The staghorn fern. This one is very interesting because you can have it in a pot or mounted on wood and it looks like staghorns. The Boston fern. I have this one in a coque dama because they love humidity and this one will also thrive in a room with low light conditions. The spider plant. This one is one of the easiest plants you can have. So it's perfect for plant beginners. The peperomia caperata. This one is another one that is perfect for a room with low light conditions. And the opuntia. This one is not toxic but prevent your cat or dog from eating it as the thorns can really hurt.