Cunningham's Encyclopedia of Magical Herbs - Scott Cunningham 1985
Parsley
The Herbs
(Petroselinum crispum, Petroselinum sativum) D+ P K
Folk Names: Devil’s Oatmeal, Percely, Persil, Petersilie, Petroselinum, Rock Parsley
Gender: Masculine
Planet: Mercury
Element: Air
Deity: Persephone
Powers: Lust, Protection, Purification
Magical Uses: When eaten, parsley provokes lust and promotes fertility, but if you are in love don’t cut parsley—you’ll cut your love as well.
Though the plant has associations with death and is often regarded as evil, the Romans tucked a sprig of parsley into their togas every morning for protection. It is also placed on plates of food to guard it from contamination.
Parsley is also used in purification baths, and those to stop all misfortune. A wreath of parsley worn on the head prevents (or delays) inebriation.