Maybe it's got a natural insect repellent?🤷♂️
I've been drying some mullein to send to a friend. The first and second day the cats ignore it, but the third and fourth days they lay in it and start rubbing and rolling in it. Like, very enthusiastically rolling in it.😆 No crazy eyes and claws like they get with catnip, but definitely working at getting it everywhere. Makes me wonder why. I know the seeds and flower heads can be used as fish dope, so maybe their little noses are telling them it has some beneficial quality for controlling pests.