Calendula is one of my favorite herbs!

http://blog.chestnutherbs.com/calendula-sunshine-incarnate-an-edible-and-medicinal-flower

Wonderful Yarrow herb

I grow yarrow.  I use yarrow mostly as a styptic.  I gather and dry the leaves.  Rosemary Gladstar has this wonderful youtube video on it.
http://mountainroseblog.com/video-yarrow-rosemary-gladstar/

Conductor/Perfumer - Great story!

http://www.nytimes.com/2014/03/06/fashion/the-met-conductor-fabio-luisi-seduced-by-creating-his-own-perfumes.html?_r=1