… or Verbascum, and sometimes mullein, as this genus (Verbascum, of which there are some 350 species…) is known in English.
I do think, though, that the German Königskerze does for more justice to this plant which becomes truly regal when it flowers in July:
Favouring dry, sandy soils in the sun (and therefore often to be found flourishing on wasteland), the Königskerze is not only regal, it has a tradition of healing dating back to Hippocrates. The plant has distinct emollient, demulcent and astringent properties and, while Hippocrates reccommended it for the external treatment of wounds, the Königskerze went on to develop a tradition of treating coughs, colds and respiratory complaints.
The flowers have robust, fleshy petals making them difficult to dry and so one of the best and easiest ways of extracting their healing properties is to use them to make an infused honey in readiness for the onset of autumn and winter:
1) You need to pick the flowers on a dry day, either in the morning or in the evening, not in the heat of the day, and only pick the blossoms fully open. You need to use the blossoms immediately (they will wilt and start to turn brown within hours otherwise) so make sure you have a sterilised jar (I fill the jar with boiling water direct from the kettle and leave it to stand for at least 5 minutes before using) and the honey with you.
2) Place your blossoms directly into your sterilised jar, enough to fill the jar, pour in the honey, seal and rotate the jar a good couple of times to make sure all of the blossoms are covered in a coating of honey.
3) Leave to infuse at room temperature for about 2 weeks. At the end of the infusing, strain the honey into a clean, sterilised jar for storage and/or immediate use either directly as a teaspoonful of honey medicine for ailing children, or to sweeten herbal teas.