Mullein Diffuser Pen, Smoking Alternative, Replace Bad Habits, Mint Breathe eBay My first time finding mullein in the wild and there was A TON of it! I harvested just from this one plant as I wasn't expecting it and wasn't very prepared, so Mullein is a non native invasive plant that grows all around the americas but we can find it in the high desert areas of Arizona. It is great for allergies, colds, lung issues Becky Morgan I ordered this mullein diffuser last week before I quit vaping and it was supposed to be here Saturday. It just got here and I have to say, Instagram