Salviarosmarinus (/ˈslviə ˌrɒsməˈraɪnəs/[3][4]), commonly known as rosemary, is a shrub with fragrant, evergreen, needle-like leaves and white, pink, purple, or blue flowers. It is native to the Mediterranean region, as well as Portugal and northwestern Spain.[5] Until 2017, it was known by the scientific name Rosmarinus officinalis (/ˌrɒsməˈraɪnəs əˌfɪsɪˈneɪlɪs/[4]), now a synonym.[6]
The plant flowers in spring and summer in temperate climates, but the plants can be in constant bloom in warm climates; flowers are white, pink, purple or deep blue.[9] The branches are dotted with groups of 2 to 3 flowers down its length.[15] Rosemary also has a tendency to flower outside its normal flowering season; it has been known to flower as late as early December, and as early as mid-February (in the northern hemisphere).[16]
Salvia rosmarinus is now considered one of many hundreds of species in the genus Salvia.[2] Formerly it was placed in a much smaller genus, Rosmarinus, which contained only two to four species including R. officinalis,[17] which is now considered a synonym of S. rosmarinus. Salvia jordanii (formerly Rosmarinus eriocalyx) is a closely related species native to Iberia and the Maghreb of Africa.[18]Both the original and current genus names of the species were applied by the 18th-century naturalist and founding taxonomist Carl Linnaeus.[19] Elizabeth Kent noted in her Flora Domestica (1823), "The botanical name of this plant is compounded of two Latin words, signifying Sea-dew; and indeed Rosemary thrives best by the sea."[20]
Rosemary came to England at an unknown date, though it is likely that the Romans brought it when they invaded Britain in 43 CE. Even so, there are no viable records containing rosemary in Britain until the 8th century CE. This mention was in a document which was later credited to Charlemagne, who promoted the general usage of herbs and ordered rosemary specifically to be grown in monastic gardens and farms.[26]
There are no records of rosemary being properly naturalized in Britain until 1338, when cuttings were sent to Queen Philippa by her mother, Countess Joan of Hainault.[27] It included a letter that described the virtues of rosemary and other herbs that accompanied the gift. The original manuscript can be found in the British Museum. The gift was then planted in the garden of the old palace of Westminster.
Since then, rosemary can be found in most English herbal texts, and is widely used for medicinal and culinary purposes.[28] Hungary water, which dates to the 14th century, was one of the first alcohol-based perfumes in Europe, and was primarily made from distilled rosemary.[29] Rosemary, along with holly and ivy, was commonly used for Christmas decorations in the 17th century.[30]
Aside from its usage in the fragrance industry, rosemary is not only used as a decorative plant in gardens, but also cultivated for practical applications, such as medicine and cooking. When the plant is fully grown, the leaves, twigs, and flowering apices are often extracted for use in these areas.[31] The leaves are used to flavor various foods, such as stuffing and roasted meats.[32] In order to harvest from the plant, the bush should be matured 2-3 years to ensure it is large enough to withstand it.[33] The amount harvested should not exceed 20% of the growth in order to preserve the plant.[33]
Since it is attractive and drought-tolerant, rosemary is used as an ornamental plant in gardens and for xeriscape landscaping, especially in regions of Mediterranean climate.[9] It is considered easy to grow and pest-resistant. Rosemary can grow quite large and retain attractiveness for many years, can be pruned into formal shapes and low hedges, and has been used for topiary. It is easily grown in pots. The groundcover cultivars spread widely, with a dense and durable texture.[9]
Rosemary leaves are used as a flavoring in foods,[9] such as stuffing and roasted lamb, pork, chicken, and turkey. Fresh or dried leaves are used in traditional Mediterranean cuisine. They have a bitter, astringent taste and a characteristic aroma which complements many cooked foods. Herbal tea can be made from the leaves. When roasted with meats or vegetables, the leaves impart a mustard-like aroma with an additional fragrance of charred wood that goes well with barbecued foods.[citation needed]
In amounts typically used to flavor foods, such as one teaspoon (1 gram), rosemary provides no nutritional value.[40][41] Rosemary extract has been shown to improve the shelf life and heat stability of omega 3-rich oils which are prone to rancidity.[42] Rosemary is also an effective antimicrobial herb.[43]
The plant or its oil have been used in folk medicine in the belief it may have medicinal effects. Rosemary was considered sacred to ancient Egyptians, Romans, and Greeks.[31] In Don Quixote (Part One, Chapter XVII), the fictional hero uses rosemary in his recipe for balm of fierabras.[48]
The plant has been used as a symbol for remembrance during war commemorations and funerals in Europe and Australia.[49] Mourners would throw it into graves as a symbol of remembrance for the dead.In Australia, sprigs of rosemary are worn on ANZAC Day and sometimes Remembrance Day to signify remembrance; the herb grows wild on the Gallipoli Peninsula, where many Australians died during World War I.[49]
Several Shakespeare plays refer to the use of rosemary in burial or memorial rites. In Shakespeare's Hamlet, Ophelia says, "There's rosemary, that's for remembrance. Pray you, love, remember."[50] It likewise appears in Shakespeare's Winter's Tale in Act 4 Scene 4, where Perdita talks about "Rosemary and Rue".[51] In Act 4 Scene 5 of Romeo and Juliet, Friar Lawrence admonishes the Capulet household to "stick your rosemary on this fair corse, and as the custom is, and in her best array, bear her to church."[citation needed] It is also said that "In the language of flowers it means 'fidelity in love.'"[52]
Rosemary is very important in Danube Swabian culture being used for christenings, weddings, burials and festivals; for example, an apple with a sprig of rosemary in it is present at Kirchweih celebrations.[54][55]
Drought-tolerant, rosemary grows best in warm areas, similar to its native shores of the Mediterranean Sea. In these conditions, rosemary can grow into a shrub 5 to 10 feet in height. Rosemary grows so vigorously in ideal conditions that it needs yearly pruning to keep it bushy.
This herb can be grown in the ground or in a pot. If you live in Zones 7 and warmer, it grows easily as a perennial evergreen shrub that lives for many years. Rosemary is hardy down to 15 to 23F (-10 to -5C), so it may need winter protection. In colder areas, rosemary should be grown in a pot and brought indoors for the winter.
For many years I have had a rosemary plant in a pot about 12 inches across at the top, and it is now almost 2 feet tall. I bring it inside in the fall and out on the porch in the spring, and it is doing great and provides as needed. :)
Hi I have a very large Rosemary plant outside and right now it looks like it is dying there is only a little green left. Are they supposed to look like this at this time of year? Should I cut it back to see if it gets better?
Hi Lisa, Thanks for writing in. Rosemary is a plant that thrives in a Mediterranean-like climate and does not do well in locations with cold winters. It is not uncommon for its branches to appear dead in early spring. Since there is a little green remaining, that is a positive sign. To determine if a branch is dead, scrape the bark of a few stems. If the stem is green underneath, new growth is possible. If it is brown, removal is necessary. If all branches are brown underneath the bark, it is best to remove and get a new plant.
I planted seeds, many knowing germination can be low, and I have about 25 seedlings in a 7in diameter pot! They have just started their second set of leaves. Some are spindle-y-lanky some have nice thick stems. I have been leaving them outside all the time and they seem to be loving this spring in Maryland. I am wondering at what point to I thin them? Do I have to thin them? Amazing that this isn't info I could find on the internet! Thanks in advance!
Amy Richter is a registered dietitian who specializes in skin conditions and gut health. She owns The Acne Dietitian, a blog and private practice dedicated to helping people with acne achieve clear skin using diet and lifestyle changes.
Adam Felman is an Editor for Medical News Today and Greatist. Outside of work, he is a hearing impaired musician, producer, and rapper who gigs globally. Adam also owns every Nic Cage movie and has a one-eyed hedgehog called Philip K. Prick.
Caitlin Geng lives in Johannesburg, South Africa, with her husband and three dogs. Her work, which has appeared in print and digital publications, mainly deals with health, mental well-being, parenting, and beauty. When she is not writing, Caitlin is usually curled up on the couch with her dogs, reading comics or a good book.
Rosemary is a fragrant evergreen herb native to the Mediterranean. It is used as a culinary condiment, an ingredient in perfumes, and for its potential health benefits. Like oregano, thyme, basil, and lavender, rosemary is a member of the mint family Lamiaceae.
The herb has been hailed since ancient times for its medicinal properties. Traditional uses of rosemary include helping alleviate muscle pain, improving memory, boosting the immune and circulatory system, and promoting hair growth.
Antioxidants play an important role in neutralizing harmful particles called free radicals and preventing oxidative stress, both of which can contribute to preventing and alleviating chronic inflammatory conditions.
They also detail studies that found that rosemary has anti-aging effects on the skin due to it containing carnosic acid. Carnosic acid may help protect the skin from damage caused by UV rays, which may support graceful aging.
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