Vervain (or verveine; it’s classy French name), verbena or lemon verbena.
Vervain has a deliciously fresh, incomparable flavor. It is somewhat like lemon, but different…
You can drink it as a tea, but you can also use vervain in a syrup or with a red-fruit dessert. It is also delicious with chicken and fish dishes.
The plant does not like the cold of winter, making it a truly seasonal herb.