Another favorite ...seen at a rural restaurant in Cambria, Ca......was a long 'hedge' comprised of tagetes lemmonii and salvia leucantha 'Midnight'. When I saw it, it was covered with butterflies...stunning sight!
I'm in a new location and did not think I have a place for the tagetes lemmonii with it's wonderful coloring...but upon careful consideration, will have to have it again. I do not have as much room here to spread out color combos.