I love the scent of chamomile and find myself drawn to whiff deeply from it even before it blooms, just knees and nose to the ground buried in feathery leaves, and in the blink of an eye I feel uplifted and settled.
Skullcap
I have Skullcap growing that I started from seed indoors under lights, then moved to a place in our garden near echinacea and lovage which provide a semi-shady micro-climate from their tall stalks in summer and also keep the ground cool and moist. The Skullcap plants have been spreading from their initial spot by way of runners and have since moved and colonized three feet away, together with mint.
Plantain
Plantain is a most noble plant to be sure.