Mullein grows wild here and has many health benefits. It is an expectorant and helps remove mucus from chest. Helps with coughs. colds, and copd. The flowers leaves and roots can be used. Pour 1 cup of boiling water over 2 tops. mullein leaves. Let sit for 10 minutes. You can drink twice a day. Very good for bronchitis also. Please look online for all the benefits of drinking mullein tea.