Plant Profile

Rosemary

Salvia rosmarinus
Family: Lamiaceae  ·  Parts used: Flower, Leaf  ·  Also known as: garden rosemary

The complete database record: 3 documented constituents, 7 pharmacological actions, 13 traditional / indicated uses, with 15 cited sources.

Botanical Description

Evergreen, woody shrub (Lamiaceae), 1-2 m tall, with dense, needle-like, dark green, aromatic leaves, white-felted beneath. Small, pale blue to violet, two-lipped flowers are borne in the leaf axils.[1]

Height: 1-2 m
Habit: Evergreen, woody shrub
Leaves: Needle-like, dark green, aromatic, white-felted beneath
Flowers: Small, pale blue to violet, two-lipped, in the leaf axils
Stem: Woody, much-branched
Root: Woody perennial root system
Fruit: Four small nutlets (typical Lamiaceae schizocarp)
Flowering Period: Can flower over much of the year in mild climates, peaking in spring

Habitat & Distribution

Native to the Mediterranean coast, growing on dry, rocky, sunny slopes and coastal scrub; widely cultivated as a culinary and medicinal herb worldwide, tolerating poor, well-drained soils and drought.[1]

Harvesting

Leafy sprigs are cut throughout the year (the plant is evergreen), though essential-oil content is often considered highest just before or during flowering; leaves are stripped from the stem and dried, or used fresh.[1]

Parts: Leaf, Flower
Season: Year-round; oil content peaks around flowering

Key Constituents

Essential oil (1,8-cineole, camphor, alpha-pinene)[1]

The volatile oil, dominated by 1,8-cineole and camphor, gives the characteristic aroma and much of the antimicrobial activity.

Essential (volatile) oil1,8-Cineole (eucalyptol)CamphorTerpenes / terpenoids
Diterpenes (carnosic acid, carnosol)[1]

Potent antioxidant diterpenes considered largely responsible for rosemary's strong preservative and antioxidant activity.

Rosmarinic acid and phenolic acids[1, 14]

Contribute to antioxidant, anti-inflammatory and cognitive-supportive activity.

Rosmarinic acidPhenolic acids

Pharmacological Actions

Anti-inflammatory[1, 3, 12, 13, 14]
Anticancer (preclinical)[7]
Antimicrobial[1, 4, 12, 13, 14]
Antioxidant[1, 12, 13, 14]
Antispasmodic[12, 13, 14]

Antispasmodic (cramp easing)

Digestive aid[10, 12, 13, 14]
Neuroprotective / cognition support[5, 8, 9, 12, 13, 14]

Traditional & Indicated Uses

Arthritis / joint pain[12, 13, 14]Limited · 3/10

inferred from anti-inflammatory action

Evidence: 3
Label: Arthritis / joint pain

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Bloating[12, 13, 14]Limited · 3/10

inferred from digestive action

Evidence: 3
Label: Bloating

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Cancer (anticancer research)[7]Good · 7/10

inferred from anticancer action

Evidence: 7
Label: Cancer (anticancer research)

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Cardiovascular / heart health[12, 13, 14]Limited · 3/10
Evidence: 3
Label: Cardiovascular / heart health

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Cognitive function[8, 12, 13, 14]Good · 8/10

inferred from neuroprotective action

Evidence: 8
Label: Cognitive function

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Indigestion[12, 13, 14]Limited · 3/10

inferred from digestive action

Evidence: 3
Label: Indigestion

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Infection (general)[12, 13, 14]Limited · 3/10

inferred from antimicrobial action

Evidence: 3
Label: Infection (general)

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Inflammation (general)[3, 12, 13, 14]Good · 8/10

inferred from anti-inflammatory action

Evidence: 8
Label: Inflammation (general)

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Memory[8, 9, 12, 13, 14]Strong · 9/10

inferred from neuroprotective action

Evidence: 9
Label: Memory

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Menstrual cramps[12, 13, 14]Limited · 3/10

inferred from antispasmodic action

Evidence: 3
Label: Menstrual cramps

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Muscle spasm[12, 13, 14]Limited · 3/10

inferred from antispasmodic action

Evidence: 3
Label: Muscle spasm

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Skin irritation[12, 13, 14]Limited · 3/10

inferred from anti-inflammatory action

Evidence: 3
Label: Skin irritation

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Wounds[12, 13, 14]Limited · 3/10

inferred from antimicrobial action

Evidence: 3
Label: Wounds

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Traditional Use & History

Rosemary has an ancient Mediterranean reputation as a memory and circulation tonic ('rosemary for remembrance'), a digestive carminative, and an antiseptic for minor wounds. Commission E approves it for dyspeptic complaints internally and for rheumatic conditions and circulatory problems externally; modern research on rosmarinic acid and carnosic acid supports antioxidant, anti-inflammatory, antimicrobial and cognitive-supportive activity.[1]

Preparations

Infusion (tea)[12, 13, 14]

Dried leaf steeped in hot water, for digestive complaints.

Essential oil (aromatherapy/topical)[13]

Inhaled for cognitive/mood effects, or diluted and applied for muscular and rheumatic complaints.

Dosage

Infusion (tea)[12, 13, 14]

Commission E approves rosemary for dyspeptic complaints (internal use) and, externally, for rheumatic conditions and circulatory problems; typical internal use is roughly 2-4 g dried leaf as tea, up to three times daily. Educational reference only, not a prescription; avoid concentrated essential oil internally and in pregnancy/epilepsy.

Safety, Cautions & Contraindications

Safety note[12, 13, 14]Caution

Culinary use is entirely safe. Essential oil should not be ingested in large amounts; avoid during pregnancy in medicinal doses. May trigger epileptic seizures in predisposed individuals at high doses. May interact with anticoagulants and antiplatelet drugs.

Safety note[12, 13, 14, 15]Info

Duke (2002) does not appear to include a dedicated entry for rosemary (Salvia rosmarinus / Rosmarinus officinalis) as a primary herb entry in the section searched; however, rosemary is referenced throughout the text in relation to antioxidant and antimicrobial properties of its key compounds (carnosol, rosmarinic acid). Commission E (KOM) approves rosemary for dyspeptic complaints and externally for rheumatic conditions and circulatory problems.

Harvest Readiness

[11]

Part: leaf
Signals: Gather the leaves through the year (evergreen), best in spring or early summer when the plant is actively growing.
Basis: traditional
Source Quote: Leaves are harvested year-round but are best harvested in spring or early summer when the plant is actively growing.
Species Confirmed: 1
Notes: PFAF (REF-3334, as Rosmarinus officinalis); the evergreen leaves are gathered year-round, best in spring/early summer. Single lineage -> provisional.

[11]

Part: flower
Signals: Gather the flowers in spring to early summer, while in flower.
Basis: traditional
Source Quote: in flower from March to October
Species Confirmed: 1
Notes: PFAF (REF-3334); the flowers are gathered while in flower (mainly spring to early summer). Single lineage -> provisional.

External Identifiers

References & Sources

  1. de Oliveira, J.R., Camargo, S.E.A. and de Oliveira, L.D (2019) 'Rosmarinus officinalis L. (rosemary) as therapeutic and prophylactic agent', Journal of Biomedical Science, 26(1), pp. 5. doi:10.1186/s12929-019-0499-8 Meta-analysis / review
    https://doi.org/10.1186/s12929-019-0499-8
  2. Ghasemzadeh Rahbardar, M. and Hosseinzadeh, H (2025) 'Toxicity and safety of rosemary (Rosmarinus officinalis): a comprehensive review', Naunyn-Schmiedeberg's Archives of Pharmacology, 398(1), pp. 9-23. doi:10.1007/s00210-024-03336-9 Meta-analysis / review
    https://doi.org/10.1007/s00210-024-03336-9
  3. Zhang, L. and Lu, J (2024) 'Rosemary (Rosmarinus officinalis L.) polyphenols and inflammatory bowel diseases: Major phytochemicals, functional properties, and health effects', Fitoterapia, 177, pp. 106074. doi:10.1016/j.fitote.2024.106074 Meta-analysis / review
    https://doi.org/10.1016/j.fitote.2024.106074
  4. Ahmed, H.M. and Babakir-Mina, M (2020) 'Investigation of rosemary herbal extracts (Rosmarinus officinalis) and their potential effects on immunity', Phytotherapy Research, 34(8), pp. 1829-1837. doi:10.1002/ptr.6648 Preclinical
    https://doi.org/10.1002/ptr.6648
  5. Li, T., Wang, W., Guo, Q., Li, J. and others (2023) 'Rosemary (Rosmarinus officinalis L.) hydrosol based on serotonergic synapse for insomnia', Journal of Ethnopharmacology, 318(Pt B), pp. 116984. doi:10.1016/j.jep.2023.116984 Preclinical
    https://doi.org/10.1016/j.jep.2023.116984
  6. Hassani, F.V., Shirani, K. and Hosseinzadeh, H (2016) 'Rosemary (Rosmarinus officinalis) as a potential therapeutic plant in metabolic syndrome: a review', Naunyn-Schmiedeberg's Archives of Pharmacology, 389(9), pp. 931-949. doi:10.1007/s00210-016-1256-0 Meta-analysis / review
    https://doi.org/10.1007/s00210-016-1256-0
  7. Gonzalez-Vallinas, M., Reglero, G. and Ramirez de Molina, A (2015) 'Rosemary (Rosmarinus officinalis L.) Extract as a Potential Complementary Agent in Anticancer Therapy', Nutrition and Cancer, 67(8), pp. 1221-1229. doi:10.1080/01635581.2015.1082110 Meta-analysis / review
    https://doi.org/10.1080/01635581.2015.1082110
  8. Hussain, S.M., Syeda, A.F., Alshammari, M., Alnasser, S. and others (2022) 'Cognition enhancing effect of rosemary (Rosmarinus officinalis L.) in lab animal studies: a systematic review and meta-analysis', Brazilian Journal of Medical and Biological Research, 55, pp. e11593. doi:10.1590/1414-431X2021e11593 Meta-analysis / review
    https://doi.org/10.1590/1414-431X2021e11593
  9. Nematolahi, P., Mehrabani, M., Karami-Mohajeri, S. and Dabaghzadeh, F (2018) 'Effects of Rosmarinus officinalis L. on memory performance, anxiety, depression, and sleep quality in university students: A randomized clinical trial', Complementary Therapies in Clinical Practice, 30, pp. 24-28. doi:10.1016/j.ctcp.2017.11.004 Randomized trial
    https://doi.org/10.1016/j.ctcp.2017.11.004
  10. Ulbricht, C., Abrams, T.R., Brigham, A., Ceurvels, J. and others (2010) 'An evidence-based systematic review of rosemary (Rosmarinus officinalis) by the Natural Standard Research Collaboration', Journal of Dietary Supplements, 7(4), pp. 351-413. doi:10.3109/19390211.2010.525049 Meta-analysis / review
    https://doi.org/10.3109/19390211.2010.525049
  11. Plants For A Future 'Rosmarinus officinalis (Rosemary)'. Available at: https://pfaf.org/user/Plant.aspx?LatinName=Rosmarinus+officinalis Traditional / reference
    https://pfaf.org/user/Plant.aspx?LatinName=Rosmarinus+officinalis
  12. Hoffmann, D (2003) 'Medical Herbalism'. Traditional / reference
    https://scholar.google.com/scholar?q=Medical%20Herbalism
  13. Moss, M., Cook, J., Wesnes, K. and Duckett, P (2003) 'Aromas of rosemary and lavender essential oils differentially affect cognition and mood in healthy adults', 113(1), pp. 15--38. doi:10.1080/00207450390161903 Clinical study
    https://doi.org/10.1080/00207450390161903
  14. Petersen, M. and Simmonds, M.S.J (2003) 'Rosmarinic acid', 62(2), pp. 121--125. Traditional / reference
    https://scholar.google.com/scholar?q=Rosmarinic%20acid
  15. Duke, J.A (2002) 'Handbook of Medicinal Herbs, Second Edition'. Traditional / reference
    https://scholar.google.com/scholar?q=Handbook%20of%20Medicinal%20Herbs%2C%20Second%20Edition

This fact sheet is generated automatically from the Omnia Sana plant database and reflects its latest synced data. It is provided for educational purposes only and is not medical advice. How this site is built.

Selected studies & references

Educational use only. This profile summarises traditional and scientific sources for reference. It is not medical advice and not a substitute for a qualified practitioner. Some plants carry safety cautions and drug interactions - always check before use.
This profile is assembled automatically from the Omnia Sana plant database, which we curate by hand. How this site is built.
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