I to am wanting to try Mullein for COPD. I was given an entire plant with roots from a good friends garden. I am just trying to get knowledge as how to use each parts of it. I dried the leaves and stock with flowers and have saved the roots with new growth for planting my own. I have heard that the leaves must be filtered for tea as the hairs will irritate the throat. what about the stem and flowers. I was also told you could smoke the leaves? any one with this knowledge out there.