Hyssop

And dip a bunch of hyssop in the blood that is at the door, and sprinkle the transom of the door therewith, and both the door cheeks: let none of you go out of the door of his house till morning.

Hyssop, Rosemary, and Sage are natives of the south of Europe, and the two first appreciate a light, sandy soil, and not too much sun.

The life of one plant would be affected by another. Rue was definitely hostile to basil, rosemary to hyssop, but coriander, dill and chervil lived on the friendliest of terms[.]