The following nine herbs allegedly withstand and protect against all spiritual and magical dangers:
1.Eyebright
2.Mallow
3.Mugwort
4.Self-heal
5.Speedwell
6.Saint John's Wort
7.Vervain
8.Yarrow
9.Wormwood
Plant them around the perimeter of the area needing protection, ideally in a circle.
Maintain living plants in pots that may be arranged in a circle, if an when necessary.
In times of spiritual danger, sit within that circle.
copyright: The Element Encyclopedia of 5000 Spells by Judika Illes