One of the "biggies" is now starting to come up. Melissa officinalis, Lemon Balm, known in Deitsch as Meliesegraut, is a great antiviral in the mint family. It also makes a delicious tea that is uplifting to the mind, body, and spirit. The plant is very prolific and will spread rapidly, but it yields a surprisingly small amount of essential oil if put through a still.
I have mentioned Lemon Balm in a few articles in the past, but this lovely little plant is due for its own article at some point, soon.