Last year I successfully grew Thai Basil and Catnip from seed in adjacent pots in my backyard garden. In the past catnip has come up from the previous season, and I read that Thai Basil might also do so. Can you identify what might be coming up in one of the pots? I don't know what grew in it last year, and it does not look like catnip to me. Could it be Thai Basil, or probably just a weed? thank you