I'm after any plants (except cacti) that have any psychoactive properties. E.g. Betel nut, kanna, Mitragyna javanica, damiana, C Edulis etc. Willing to pay money for any of these.
I currently have Mitragyna diversifolia, San Pedro cactus, Calea zacatechichi, Brahmi. I don't use any - I just like growing plants that have had a big impact on human and human cultures.