Verbascum thapsus is a biennial, which means that it lives for two years. The first year it will grow only leaves, and the second year a stalk that produces many yellow flowers. The stalks generally grow 1 - 2 meters high, though some can grow much taller. Mullein is easy to find and in the fall seeds can be collected and spread into gardens or other areas. It is also possible to transplant young plants which tend to grow close to one another. Each part of the plant has unique uses and I hope here to help others see the beauty in a plant that is often overlooked.
The plants for a future database has valuable information on mullein, as does wikipedia. Instead of repeating the information I am going to give the links and encourage everyone to read them and make time to find some mullein plants or pay closer attention to those already growing around you.
Plants For a Future - Verbascum thapsus
Wikipedia - Common mullein