I have 2 cats who love to eat lemon grass. When I first brought some in the house for cooking I left the leaves sticking out of the trash bin and my largest cat went over and pulled the leaves out and carried them off to the den and started chewing them. My other cat likes lemon grass as well. They now both turn up their noses at fresh cat nip which I grow for them. Who knew? They have been eating it for years and have not had any medical problems from it and our Vet says it is probably good for their digestion, since it is recommended to give them greens if they are inside only cats. I only give them the new, young, green leaves.