A trip to Scarborough fair was something like a modern trip to new York city. The song is a collection of folk verses that have been sung for more than 600 years. ("Love Spell") Canticle is written by Art Garfunkel and is an anti-war ballad that is beautifully woven into the traditional folk song.

• Parsley: It was once said that only witches and pregnant women could grow this herb. “Sow parsley, sow babes,” was an old expression. The herb has been associated with witchcraft in England and also with death since ancient times. But more importantly, it is said to provoke lust and love.
• Sage: Sage was once used to help childless couples conceive, and is associated with wisdom and longevity in plant lore. It was also used magically to honor weddings and to ensure domestic harmony.
• Rosemary: Was once held to represent love and faithfulness. The plant was used in wedding ceremonies in place of rings as a sign of fidelity, and carried by newlyweds and wedding guests as a charm for fertility. But it also has the meaning of remembrance, as Shakespeare noted in Hamlet, “There’s rosemary for remembrance.” Often used in love potions, it is also said to attract elves.
• Thyme: Girls once used thyme sprigs in ceremonies to discover the identity of their true loves. A more upscale lady of Medieval times would embroider a flowering thyme sprig along with a visiting bee as a token to be given to a favored knight. A woman wearing thyme was once thought to be irresistible.

I've heard this song most of my life growing up, and never realized it was about a "Love Spell" !!