In what country? In the UK peppermint is very popular but it’s unobtainable (in unmixed form) in France. Lime flower and mint, verbena and mint, are very popular in France but unobtainable in Britain. I needed to buy some herbal tea in Zagreb but couldn’t make any sense of the words or pictures on the packets so just chose one at random. It was delicious but I still have no idea what it was.