About Salvia officinalis L.
Salvia officinalis L. cultivars vary widely in size, leaf and flower color, and foliage pattern, with many having variegated leaves. The unmodified Old World type grows to around 60 cm (2 ft) tall and wide. Its most common flower color is lavender, but flowers may also be white, pink, or purple, and bloom in late spring or summer. Its leaves are oblong, growing up to 65 mm (2+1⁄2 in) long by 25 mm (1 in) wide. Leaves are grey-green, rugose on the upper surface, and nearly white underneath due to a dense covering of short soft hairs. Modern cultivars produce leaves with purple, rose, cream, and yellow coloring in many different variegated combinations. The distinctive grayish-green leaf color of common sage is the origin of the color name "sage". Common sage is native to the Mediterranean region, and has become naturalized in many locations around the world. In favorable garden conditions, S. officinalis can grow to a substantial size of 1 square metre or more, but many cultivars are more compact. These compact cultivars are valued as small ornamental flowering shrubs rather than for herbal use. Some cultivars work as low ground cover, particularly in sunny, dry environments. Like many other herbs, common sage can be killed by a cold, wet winter, especially if planted in soil that does not drain well. It is easily propagated from summer cuttings, and some cultivars are grown from seeds. Named cultivars of common sage include: 'Alba', a white-flowered cultivar; 'Aurea', golden sage; 'Berggarten', a cultivar with large leaves that rarely blooms, extending the useful lifespan of its leaves; 'Extrakta', which has leaves with higher essential oil concentrations; 'Icterina', a cultivar with yellow-green variegated leaves; 'Lavandulaefolia', a small-leaved cultivar; 'Purpurascens' ('Purpurea'), a purple-leafed cultivar; and 'Tricolor', a cultivar with white, purple and green variegated leaves. 'Icterina' and 'Purpurascens' have been awarded the Royal Horticultural Society's Award of Garden Merit. Salvia officinalis has been used since ancient times to treat snakebites, increase women's fertility, and for a range of other purposes. The Romans called sage a "holy herb" and used it in their religious rituals. Theophrastus wrote of two different types of sage: a wild undershrub he called sphakos, and a similar cultivated plant he called elelisphakos. Pliny the Elder noted that Romans called the cultivated plant salvia, and used it as a diuretic, a local skin anesthetic, a styptic, and for other uses. In the early Middle Ages, Charlemagne recommended common sage for cultivation, and it was grown in monastery gardens across the Carolingian Empire. Walafrid Strabo described it in his poem Hortulus, noting it has a sweet scent and is useful for many human ailments; he used the name lelifagus, drawing from the plant's Greek naming roots. Throughout the Middle Ages, common sage had a strong reputation for its healing properties and value, and many proverbs reference these qualities. It was sometimes called S. salvatrix, meaning "sage the savior". Dioscorides, Pliny, and Galen all recommended sage as a diuretic, hemostatic, emmenagogue, and tonic. Le Menagier de Paris recommends sage for cold sage soup, sage sauce for poultry, and a sage infusion for hand washing at the table. John Gerard's 1597 Herball states that sage is uniquely good for the head and brain, quickens the senses and memory, strengthens the sinews, restores health to people with palsy, and stops tremors of the limbs. Gervase Markham's 1615 work The English Huswife includes a recipe for tooth powder made from sage and salt. Common sage is an ingredient in recipes for Four Thieves Vinegar, a herbal blend believed to protect against plague. In past centuries, it was also used for hair care, treating insect bites and wasp stings, managing nervous and mental conditions, creating oral preparations for inflammation of the mouth, tongue and throat, and reducing fevers.
