FAMILY: Lamiaceae (Labiatae)
SYNONYMS: M. viridis, common spearmint, garden spearmint, spire mint, green mint, lamb mint, pea mint, fish mint.
GENERAL DESCRIPTION: A hardy branched perennial herb with bright green, lance-shaped, sharply toothed leaves, quickly spreading underground runners and pink or lilac-coloured flowers in slender cylindrical spikes.
DISTRIBUTION: Native to the Mediterranean region, now common throughout Europe, western Asia and the Middle East. It was introduced to the USA where it has become a very popular flavouring. The oil is produced in midwest USA, Hungary, Spain, Yugoslavia, the USSR and China.
OTHER SPECIES: There are several different types of spearmint, especially in the USA, such as the curly mint (M. spicata var. crispa). In Russia the oil from M. verticellata is also sold as spearmint oil.
HERBAL/FOLK TRADITION: Valued all over the world as a culinary herb, as shown by its folk names. It was used by the ancient Greeks as a restorative and to scent their bathwater. The distilled water is used to relieve hiccough, colic, nausea, indigestion and flatulence. ‘Applied to the forehead and temples, it eases the pains in the head, and is good to wash the heads of young children with, against all manner of breakings out, sores or scabs ... being smelled unto, it is comforting to the head.’.
ACTIONS: Anaesthetic (local), antiseptic, antispasmodic, astringent, carminative, cephalic, cholagogue, decongestant, digestive, diuretic, expectorant, febrifuge, hepatic, nervine, stimulant, stomachic, tonic.
EXTRACTION: Essential oil by steam distillation from the flowering tops.
CHARACTERISTICS: A pale yellow or olive mobile liquid with a warm, spicy-herbaceous, minty odour. It blends well with lavender, lavandin, jasmine, eucalyptus, basil and rosemary and is often used in combination with peppermint.
PRINCIPAL CONSTITUENTS: L-carvone (50–70 per cent), dihydrocarvone, phellandrene, limonene, menthone, menthol, pulegone, cineol, linalol, pinenes, among others.
SAFETY DATA: Non-toxic, non-irritant, non-sensitizing.
AROMATHERAPY/HOME: USE ‘The properties of spearmint oil resemble those of peppermint but its effects are less powerful ... it is better adapted to children’s maladies.’.
Skin care: Acne, dermatitis, congested skin.
Respiratory system: Asthma, bronchitis, catarrhal conditions, sinusitis.
Digestive system: Colic, dyspepsia, flatulence, hepatobiliary disorders, nausea, vomiting.
Immune system: Colds, fevers, ’flu.
Nervous system: Fatigue, headache, migraine, nervous strain, neurasthenia, stress.
OTHER USES: Used as a fragrance component, mainly in soaps and colognes. Primarily used as a flavour ingredient in a wide range of products, including toothpaste, chewing gum, sweets, alcoholic and soft drinks.