Lemon balm, or melissa, used to be planted near beehives as the bees are always attracted to the perfume of the flowers. In the Middle Ages it was used to cure depression, and aromatherapists still use it for this reason today. It can be made into a tea to alleviate anxiety, depression, stress and insomnia. It is very popular in Spain as a cure-all for children. Lemon balm is anti-viral, and you can cure cold sores by rubbing the leaves with the fingers and then dabbing the sore.
It doesn’t taste good, but some folk put the leaves into salads. One to look out for, or perhaps to grow on your kitchen window-sill. Then you know that it is organic!