Any and all help would be appreciated. I like to lop off the flowerstalks, let them dry for a couple of days, remove buds, flowers, and seedpods, dry those thoroughly, and use the resulting mass of grayish green fuzzy herb with a bit of yellow in there.
Leaves are good for coughs.
I have no idea which is better - use whichever you want, as a tea. The smell of mullein tea is as bad as that of Scrophularia . The plant is, after all, in the Scrophulariaceae , which explains a lot of its anti-inflammatory effects. Also, fuzzy species sometimes gives some people a scratchy throat. If you're one of the unlucky ones use a coffee filter to filter out the itchy hairs before you ingest your tea.