Oh that's a shame.
Maybe a fence around them? That one might come back if they didn't eat it off too short. I hope the rabbits leave mine alone! I have 7 in the garden, and one in a pot. They seem to be doing OK, They sure suck up the water. I don't think they like intence sun light either. How big of a pot do you have yours in? I don't know how long their tap root gets. Good luck with your remaining plants.