Herbal Info
Sage
Botanical: Salvia officinalis (LINN.)
Family: N.O. Labiata
Synonyms: (Old English) Sawge. Garden Sage. Red Sage. Broad–leaved White Sage. Narrow–leaved White Sage. Salvia salvatrix
Parts Used: Leaves, whole herb.
The Common Sage, the familiar plant of the kitchen garden, is an evergreen undershrub, not a native of these islands, its natural habitat being the northern shores of the Mediterranean. It has been cultivated for culinary and medicinal purposes for many centuries in England, France and Germany, being sufficiently hardy to stand any ordinary winter outside. Gerard mentions it as being in 1597 a well-known herb in English gardens, several varieties growing in his own garden at Holborn.
Basic Description: Sage generally grows about a foot or more high, with wiry stems. The leaves are set in pairs on the stem and are 1 1/2 to 2 inches long, stalked, oblong, rounded at the ends, finely wrinkled by a strongly–marked network of veins on both sides, greyish–green in colour, softly hairy and beneath glandular. The flowers are in whorls, purplish and the corollas lipped. They blossom in August. All parts of the plant have a strong, scented odour and a warm, bitter, somewhat astringent taste, due to the volatile oil contained in the tissues.
Habitat: Sage is found in its natural wild condition from Spain along the Mediterranean coast up to and including the east side of the Adriatic; it grows in profusion on the mountains and hills in Croatia and Dalmatia, and on the islands of Veglia and Cherso in Quarnero Gulf, being found mostly where there is a limestone formation with very little soil. When wild it is much like the common garden Sage, though more shrubby in appearance and has a more penetrating odour, being more spicy and astringent than the cultivated plant. The best kind, it is stated, grows on the islands of Veglia and Cherso, near Fiume, where the surrounding district is known as the Sage region. The collection of Sage forms an important cottage industry in Dalmatia. During its blooming season, moreover, the bees gather the nectar and genuine Sage honey commands there the highest price, owing to its flavour.
In cultivation, Sage is a very variable species, and in gardens varieties may be found with narrower leaves, crisped, red, or variegated leaves and smaller or white flowers. The form of the calyx teeth also varies, and the tube of the corolla is sometimes much longer. The two usually absent upper stamens are sometimes present in very small-sterile hooks. The Red Sage and the Broad-leaved variety of the White (or Green) Sage - both of which are used and have been proved to be the best for medical purposes - and the narrow-leaved White Sage, which is best for culinary purposes as a seasoning, are classed merely as varieties of Salvza officinalis, not as separate species. There is a variety called Spanish, or Lavender-leaved Sage and another called Wormwood Sage, which is very frequent. S. Lyrala and S. urticifolia are well known in North America.
The name of the genus, Salvia, is derived from the Latin salvere, to be saved, in reference to the curative properties of the plant, which was in olden times celebrated as a medicinal herb. This name was corrupted popularly to Sauja and Sauge (the French form), in Old English, ‘Sawge,’ which has become our present-day name of Sage.
In the United States Pharmacopceia, the leaves are still officially prescribed, as they were formerly in the London Pharrnacopceia, but in Europe generally, Sage is now neglected by the regular medical practitioner, though is still used in domestic medicine. Among the Ancients and throughout the Middle Ages it was in high repute: Cur moriatur homo cui Salvia crescit in horto? (‘Why should a man die whilst sage grows in his garden?’) has a corresponding English proverb: ‘He that would live for aye, Must eat Sage in May.’
Cultivation The Garden Sage succeeds best in a warm and rather dry border, but will grow well almost anywhere in ordinary garden soil; it thrives in a situation somewhat shaded from sunshine, but not strictly under trees.
Description: It is a hardy plant, but though a perennial, does not last above three or four years without degenerating, so that the plantation should be renewed at least every four years. It is propagated occasionally by seed, but more frequently by cuttings. New plantations are readily made by pulling off the young shoots from three-year-old plants in spring, generally in the latter end of April, as soon as they attain a sufficiency of hardness to enable them to maintain themselves on the moisture of the ground and atmosphere, while the lower extremities are preparing roots. If advantage be taken of any showery weather that may occur, there is little trouble in obtaining any number of plants, which may either be struck in the bed where they are to grow, inserting a foot apart each way, or in some other shady spot whence they may be removed to permanent quarters when rooted. The latter plan is the best when the weather is too bright and sunny to expect Sage to strike well in its ordinary quarters. See the young plants do not suffer from want of water during their first summer, and hoe the rows regularly to induce a bushy growth, nipping off the growing tips if shooting up too tall. Treat the ground with soot and mulch in winter with old manure. Cuttings may also be taken in the autumn, as soon as the plants have ceased flowering.
At the present day, by far the largest demand for Sage is for culinary use, and it should pay to grow it in quantity for this purpose as it is little trouble. For this, the White variety, with somewhat pale green leaves should be taken.
Chemical Constituents: The chief constituent of Sage and its active principle is a yellow or greenish-yellow volatile oil (sp. gr. 0.910 to 0.930) with a penetrating odour. Tannin and resin are also present in the leaves, 0.5 to 1.0 per cent of the oil is yielded from the leaves and twigs when fresh, and about three times this quantity when dry.
The Sage oil of commerce is obtained from the herb S. officinalis, and distilled to a considerable extent in Dalmatia and recently in Spain, but from a different species of Salvia. A certain amount of oil is also distilled in Germany. The oil distilled in Dalmatia and in Germany is of typically Sage odour, and is used for flavouring purposes. The botanical origin of Spanish Sage oil is now identified as S. triloba, closely allied to S. officinalis, though probably other species may also be employed. The odour of the Spanish oil more closely resembles that of Spike Lavender than the Sage oil distilled in Germany for flavouring purposes, and is as a rule derived from the wild Dalmatian herb, S. officinalis. The resemblance of the Spanish oil to Spike Lavender oil suggests the possibility of its use for adulterative purposes, and it is an open secret that admixture of the Spanish Sage oil with Spanish Spike Lavender oil does take place to a considerable extent, though this can be detected by chemical analysis. It is closer in character to the oil of S. sclarea, Clary oil, which has a decided lavender odour, although in the oil of S. triloba, the ester percentage does not appear to be as high as in the oil of the S. sclarea variety. English distilled Sage oil has been said to contain Cedrene.
S. mellifer (syn. Ramona stachyoides) is a labiate plant found in South California, known as BLACK SAGE, with similar constituents, and also traces of formic acid.
Medicinal Action and Uses: Stimulant, as tringent, tonic and carminative. Has beenused in dyspepsia, but is now mostly employed as a condiment. In the United States, where it is still an official medicine, it is in some repute, especially in the form of an infusion, the principal and most valued application of which is as a wash for the cure of affections of the mouth and as a gargle in inflamed sore throat, being excellent for relaxed throat and tonsils, and also for ulcerated throat. The gargle is useful for bleeding gums and to prevent an excessive flow of saliva. When a more stimulating effect to the throat is desirable, the gargle may be made of equal quantities of vinegar and water, 1/2 pint of hot malt vinegar being poured on 1 OZ. of leaves, adding 1/2 pint of cold water.
The infusion when made for internal use is termed Sage Tea, and can be made simply by pouring 1 pint of boiling water on to 1 OZ. of the dried herb, the dose being from a wineglassful to half a teacupful, as often as required, but the old-fashioned way of making it is more elaborate and the result is a pleasant drink, cooling in fevers, and also a cleanser and purifier of the blood. Half an ounce of fresh Sage leaves, 1 OZ. of sugar, the juice of 1 lemon, or 1/4 OZ. of grated rind, are infused in a quart of boiling water and strained off after half an hour. (In Jamaica the negroes sweeten Sage Tea with lime-juice instead of lemon.)
Sage Tea or infusion of Sage is a valuable agent in the delirium of fevers and in the nervous excitement frequently accompanying brain and nervous diseases and has considerable reputation as a remedy, given in small and oft-repeated doses. It is highly serviceable as a stimulant tonic in debility of the stomach and nervous system and weakness of digestion generally. It was for this reason that the Chinese valued it, giving it the preference to their own tea. It is considered a useful medicine in typhoid fever and beneficial in biliousness and liver complaints, kidney troubles, haemorrhage from the lungs or stomach, for colds in the head as well as sore throat and quinsy and measles, for pains in the joints, lethargy and palsy. It will check excessive perspiration in phthisis cases, and is useful as an emmenagogue. A cup of the strong infusion will be found good to relieve nervous headache.
The infusion made strong, without the lemons and sugar, is an excellent lotion for ulcers and to heal raw abrasions of the skin. It has also been popularly used as an application to the scalp, to darken the hair. The fresh leaves, rubbed on the teeth, will cleanse them and strengthen the gums. Sage is a common ingredient in tooth-powders.
The volatile oil is said to be a violent epileptiform convulsant, resembling the essential oils of absinthe and nutmeg. When smelt for some time it is said to cause a sort of intoxication and giddiness. It is sometimes prescribed in doses of 1 to 3 drops, and used for removing heavy collections of mucus from the respiratory organs. It is a useful ingredient in embrocations for rheumatism. In cases where heat is required, Sage has been considered valuable when applied externally in bags, as a poultice and fomentation.
Source: Botanical.com, A Modern Herbal by Mrs. M Grieve
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