Cunningham's Encyclopedia of Magical Herbs - Scott Cunningham 1985

Lime
The Herbs

(Citrus aurantifolia or L. Limetta) Peel: G

Folk Names: Loomi, Dayap, Calmouc

Gender: Masculine

Planet: Sun

Element: Fire

Powers: Healing, Love, Protection

Magical Uses: Take a fresh lime, pierce it with old iron nails, spikes, pins, and needles, and throw it into a deep hole in the ground. This will rid you of all ills, hexes, and so on.

Wear a necklace of limes to cure a sore throat. Lime peel is used in love mixtures and incenses. To cure a toothache, drive a nail into the trunk of a lime tree (but thank the lime tree first before you do so).

Twigs of the lime tree protect against the evil eye when carried.