Most tortoises will not eat herbs very willingly. Might be because the oils are so strong. For variety, I will add itty bitty bits, cut/chop very fine, and mix it into their salad. I was doing this with oregano because it is suppose to help with respiratory problems, when I first adopted runny nose FunkeeDeeTee. I had to cut it in to tiny pieces or he would not eat it. Herns are awesome around the habitat however and if they do nibble, better yet. If they do.