Wormwood: Artemisia absinthium Most famous for the drink Absinthe, wormwood is a rather toxic very bitter tasting herb. In days past it was used remove worms, hence its common name.
This is my prized plant, its survived 5 transplanting and was the only one out of 10,000 seeds that took last year. You cant see it in the picture but the leaves have a slightly bluish tint to them.