As I remember this has a yellow flower, but it has been so long since I saw one in bloom, I forget. Also known as Bible Leaf, it was pressed in the bible you carried to church to be crumbled under your nose, to wake you up. It has a strong chemical and mint smell. Not unpleasant, but you would not want a perfume. It can grow a couple of feet high in good soil.
Horehound is a rather strange tasting herb for throat problems. If you are my age or older, you may remember tham in hard candies used for throat lozenges. Has fabulously wooly and gray leaves.
Santolina..very fragrant, used as a strewing herb on medieval floors to repel insects etc. sometimes used as a mini hedge. Itis a lovely soft gray green.