I added goldenrod to the yard for the first time, and didn't really know what to expect, but I definitely didn't expect it to get ~12' tall! I still hasn't bloomed but is looking like it's (finally) going to. I know it doesn't usually get this tall - Edison did it - but other than that? Is there a very tall variety? A look-alike? Until it blooms I can't be certain but it looks like it's goldenrod and the source knows her stuff.