one of my 13 year old cats has been eating the bottom leaves of a bucket/plant all summer. I'm waiting to see if it likes the bud or not as it's only been eating bottom leaves. I started them on the real "cat grass", when that died she started the pot. I don't see all that much damage and I don't mind the cat having a little fun. If it was destructive, I'd deal with that differently. I have to watch the seedlings next season though.