Growing in my front yard there is a five foot tall plant. It looks nothing like anything else in the yard. This is north Texas, pictures taken this morning. It started sprouting late spring and began flowering as summer came in.
This is such an easy plant to pull well before it goes to seed that I would hardly call it "a monstrosity'. Save that noun for something like Giant Hogweed, "Heracleum mantegazzianum". I sometimes leave mullein in the far reaches of my garden for its beautiful leaves that persist through the winter here . . . but am sure to pull it up before the flowers set seed the following year. As a biennial, mullein is very easy to enjoy and control.