Blessed Thistle or Holy Thistle is a herb renowned for its protective qualities.
It guards against the evil eye when carried on the person, along with giving strength and renewed energy to the person.
It is said that men who carry this will become better lovers...sadly, I cannot personally vouch for its effectiveness!
Placing a bowl with Blessed Thistle, and other herbs and roots with the title of 'Blessed' or 'Holy' (such as Palo Santo) in a room or on an altar will bless and protect the home.
Purchase is for 10g - this is a lightweight herb, so there will be a lot in a 10g bag.