Plant Comparison
Pot marigold vs Hyssop
A side-by-side comparison of two medicinal plants — every documented constituent, action, use, safety note and cited source, assembled automatically from the Omnia Sana database.
At a glance
Pot marigold and Hyssop: they share 4 indicated uses (arthritis / joint pain, cancer (anticancer research), inflammation (general), …); 3 pharmacological actions in common.
Evidence face-off — shared uses
| Condition | Pot marigold | Hyssop | Verdict |
|---|---|---|---|
| Arthritis / joint pain | 5/10 | 1/10 | Stronger for Pot marigold |
| Cancer (anticancer research) | 7/10 | 2/10 | Stronger for Pot marigold |
| Inflammation (general) | 5/10 | 2/10 | Stronger for Pot marigold |
| Skin irritation | 5/10 | 1/10 | Stronger for Pot marigold |
Evidence scores (1–10) are computed from the tier of each cited source. “Comparable” means the two scores are within one point. Follow a score to its detailed sources.
Key Constituents
Principal wound-healing and anti-inflammatory constituents of the flower.
Antioxidant flavonoids and carotenoids give the flower its orange-yellow colour and contribute to its antioxidant activity.
Minor aromatic and resinous constituents of the flower head.
Volatile oil containing the ketones pinocamphone and isopinocamphone, giving the characteristic aroma but also responsible for the neurotoxic/convulsant risk of the essential oil at high internal doses.
Antioxidant constituents contributing to the plant's antimicrobial and anti-inflammatory activity.
Pharmacological Actions
Calendula officinalis extracts show cytotoxic antitumor, pro-apoptotic and antimetastatic activity across many cancer cell lines and in animal models (preclinical).
Traditional & Indicated Uses
inferred from anti-inflammatory action
A Calendula officinalis (LACE) aqueous extract inhibits proliferation (70-100%) of leukemia, melanoma, breast, prostate, lung and colon cancer cell lines via G0/G1 arrest and caspase-3 apoptosis and inhibits melanoma growth in nude mice; a systematic review documents its cytotoxic and antimetastatic antitumour activity (preclinical).
inferred from antifungal action
inferred from anti-inflammatory action
inferred from anti-inflammatory action
inferred from anti-inflammatory action
inferred from anticancer action
inferred from anti-inflammatory action
Safety, Cautions & Contraindications
Generally very safe for topical use. May cause contact dermatitis in rare cases (Asteraceae family allergy). Internal use is safe in normal doses. Avoid during pregnancy at therapeutic doses (uterine stimulant potential). Generally safe during breastfeeding for topical use.
Duke (2002) rates calendula (Calendula officinalis) and notes anti-inflammatory, wound-healing (vulnerary), antifungal, and antispasmodic activities at experimental levels. Commission E (KOM) approves calendula flower for wound healing and anti-inflammatory uses, both topically and as a gargle. The plant contains flavonoids, triterpene saponins (oleanolic acid glycosides), and essential oils. Dose: 1–2 g dried flower as tea (for mouth rinse/gargle); or as cream/ointment containing 2–5% calendula extract for topical use. Duke notes that calendula is generally very well-tolerated, though Asteraceae sensitivity can occasionally cause allergic reactions (Duke, 2002).
Generally safe at therapeutic doses. Hyssop essential oil is neurotoxic in high doses (contains pinocamphone and isopinocamphone) — internal use of the essential oil is contraindicated, especially in epilepsy, pregnancy, and children. The herb (dried or fresh) at normal tea doses does not carry this risk. Not recommended internally in medicinal doses during pregnancy.
Duke (2002) rates hyssop as ++ and notes clinical evidence (score 2) for antiviral activity, particularly against herpes simplex virus, which is notable clinical validation for this herb. It also demonstrates experimental antibacterial, antispasmodic, and expectorant activities. Duke warns that hyssop essential oil is potentially convulsant at higher doses (due to pinocamphone content) and should not be used in epilepsy or by children. Dose: 2–3 g dried herb as tea three times daily; no more than 0.3 ml of essential oil internally. Avoid in pregnancy due to emmenagogue properties (Duke, 2002).
External Ids
Botanical Description
Aromatic annual or short-lived perennial herb with soft, hairy, oblong leaves and branching, slightly sticky stems. The flower heads are bright orange to yellow, daisy-like, with numerous narrow ray florets surrounding a darker central disc, opening in sunlight and closing at dusk.[1]
Aromatic, semi-woody perennial subshrub with slender, upright, square stems typical of the mint family. The leaves are narrow, lance-shaped and highly aromatic. Small, two-lipped, violet-blue (occasionally pink or white) flowers are borne in dense whorled spikes along the upper stem.[1]
Habitat
Widely cultivated as a garden and medicinal plant; believed native to southern Europe and the Mediterranean, now naturalised in gardens and waste ground worldwide.[1]
Grows on dry, sunny, rocky or calcareous slopes and banks; native to southern Europe, the Mediterranean region and Central Asia, and widely cultivated as a culinary and medicinal herb.[1]
Harvesting
The flower heads (or just the ray-floret petals) are picked by hand as they open, through the flowering season, and dried quickly in a warm, shaded, airy place to preserve colour and resin content.[1]
The flowering aerial parts (leaf, stem and flower) are cut in summer as the plant comes into flower, when essential oil content is highest, and dried in a warm, shaded, airy place.[1]
Traditional Uses
Calendula flower is one of the most widely used topical wound-healing and skin-soothing herbs in Western herbal medicine, applied to cuts, grazes, minor burns and skin inflammation, and used internally as a gentle anti-inflammatory and antimicrobial remedy and as a gargle for mouth and throat irritation.[1]
Hyssop has an ancient Mediterranean and biblical reputation as a cleansing, aromatic herb, traditionally used as an expectorant and antimicrobial remedy for coughs, bronchitis and respiratory catarrh, and as a digestive bitter and mild antiviral herb, notably for cold sores (herpes simplex).[1]
Preparations
Dried petals infused in a carrier oil, used as a soothing base for topical creams and balms for skin healing.
Standardised flower extract formulated into a cream or ointment for topical wound and skin care; the best-studied modern form.
Dried flower infused in hot water, 1-2 g in 150 ml, used still warm as a mouth rinse or gargle 2-4 times daily. The EU herbal monograph's posology for this preparation is OROMUCOSAL only - it does not support taking the infusion internally. Educational reference only, not a prescription.
Dried flowering herb infused in hot water as a traditional expectorant and digestive tea.
Dosage
The EU herbal monograph gives semi-solid preparations containing the equivalent of 2-10% herbal substance, applied as a thin layer to the affected area 2 to 4 times daily. Educational reference only, not a prescription.
The EU herbal monograph gives 1-2 g of the flower in 150 mL water as an infusion, used still warm for rinsing and gargling 2 to 4 times daily, or to prepare impregnated dressings for the skin. This is an oromucosal and cutaneous preparation, not an oral tea. Educational reference only, not a prescription.
Health Canada's NNHPD monograph gives 3-16 g of dried herb top per day for adults 18 years and older, not to exceed 4 g in a single dose, with infusion among the accepted methods of preparation. Educational reference only, not a prescription. The essential oil is not for unsupervised internal use.
References
Lookalikes Review
References & Sources
- Givol, O., Kornhaber, R., Visentin, D., Cleary, M. et al (2019) 'A systematic review of Calendula officinalis extract for wound healing', Wound Repair and Regeneration, 27(5), pp. 548-561. doi:10.1111/wrr.12737 Meta-analysis / review
https://doi.org/10.1111/wrr.12737 - Shahane, K., Kshirsagar, M., Tambe, S., Jain, D. et al (2023) 'An Updated Review on the Multifaceted Therapeutic Potential of Calendula officinalis L', Pharmaceuticals (Basel), 16(4), pp. 611. doi:10.3390/ph16040611 Traditional / reference
https://doi.org/10.3390/ph16040611 - Saffari, E., Mohammad-Alizadeh-Charandabi, S., Adibpour, M., Mirghafourvand, M. et al (2016) 'Comparing the effects of Calendula officinalis and clotrimazole on vaginal Candidiasis: A randomized controlled trial', Women & Health, 57(10), pp. 1145-1160. doi:10.1080/03630242.2016.1263272 Randomized trial
https://doi.org/10.1080/03630242.2016.1263272 - Cruceriu, D., Balacescu, O. and Rakosy, E (2018) 'Calendula officinalis: potential roles in cancer treatment and palliative care', Integrative Cancer Therapies, 17(4), pp. 1068-1078. doi:10.1177/1534735418803766 Meta-analysis / review
https://doi.org/10.1177/1534735418803766 - Rezai, S., Rahzani, K., Hekmatpou, D. and Rostami, A (2023) 'Effect of oral Calendula officinalis on second-degree burn wound healing', Scars, Burns & Healing, 9, pp. 20595131221134053. doi:10.1177/20595131221134053 Randomized trial
https://doi.org/10.1177/20595131221134053 - Kadowaki, W., Miyata, R., Mizuno, S., Fujinami, M., Sato, Y. and Kumazawa, S (2023) 'Prenylated acetophenones from the roots of Calendula officinalis and their anti-inflammatory activity', Bioscience, Biotechnology, and Biochemistry, 87(7), pp. 683-687. doi:10.1093/bbb/zbad042 Preclinical
https://doi.org/10.1093/bbb/zbad042 - Samra, R.M., Maatooq, G.T. and Zaki, A.A (2022) 'A new antiprotozoal compound from Calendula officinalis', Natural Product Research, 36(22), pp. 5747-5752. doi:10.1080/14786419.2021.2023868 Preclinical
https://doi.org/10.1080/14786419.2021.2023868 - Kaur, J., Sidhu, S., Chopra, K. and Khan, M.U (2016) 'Calendula officinalis ameliorates l-arginine-induced acute necrotizing pancreatitis in rats', Pharmaceutical Biology, 54(12), pp. 2951-2959. doi:10.1080/13880209.2016.1195848 Preclinical
https://doi.org/10.1080/13880209.2016.1195848 - Aro, A.A., Perez, M.O., Vieira, C.P., Esquisatto, M.A.M., Rodrigues, R.A.F., Gomes, L. and Pimentel, E.R (2014) 'Effect of Calendula officinalis cream on achilles tendon healing', Anatomical Record, 298(2), pp. 428-435. doi:10.1002/ar.23057 Preclinical
https://doi.org/10.1002/ar.23057 - Zhang, X., Wang, R., Finiuk, N., Stoika, R., Lin, H., Wang, X. and Jin, M (2023) 'Active compounds from Calendula officinalis flowers act via PI3K and ERK signaling pathways to offer neuroprotective effects against Parkinson's disease', Food Science & Nutrition, 12(1), pp. 450-458. doi:10.1002/fsn3.3792 Preclinical
https://doi.org/10.1002/fsn3.3792 - Kadowaki, W., Miyata, R., Fujinami, M., Sato, Y. and Kumazawa, S (2023) 'Catechol-O-methyltransferase inhibitors from Calendula officinalis leaf', Molecules, 28(3), pp. 1333. doi:10.3390/molecules28031333 Preclinical
https://doi.org/10.3390/molecules28031333 - European Medicines Agency (HMPC) (2018) 'European Union herbal monograph on Calendula officinalis L., flos, Revision 1'. Available at: https://www.ema.europa.eu/en/documents/herbal-monograph/final-european-union-herbal-monograph-calendula-officinalis-l-flos-revision-1_en.pdf Traditional / reference
https://www.ema.europa.eu/en/documents/herbal-monograph/final-european-union-herbal-monograph-calendula-officinalis-l-flos-revision-1_en.pdf - Hoffmann, D (2003) 'Medical Herbalism'. Traditional / reference
https://scholar.google.com/scholar?q=Medical%20Herbalism - Nicolaus, C. et al (2017) 'A double-blind, randomized controlled trial to investigate the efficacy and safety of a monograph-based Calendula cream versus a comparator cream', 35(1), pp. 81--89. Randomized trial
https://scholar.google.com/scholar?q=A%20double-blind%2C%20randomized%20controlled%20trial%20to%20investigate%20the%20efficacy%20and%20safety%20of%20a%20monograph-based%20Calendula%20cream%20versus%20a%20comparator%20cream - Preethi, K.C. and Kuttan, R (2009) 'Wound healing activity of flower extract of Calendula officinalis', 20(1), pp. 73--79. doi:10.1515/jbcpp.2009.20.1.73 Preclinical
https://doi.org/10.1515/jbcpp.2009.20.1.73 - Jimenez-Medina, E. and Garcia-Lora, A. and Paco, L. and Algarra, I. and Collado, A. and Garrido, F (2006) 'A new extract of the plant Calendula officinalis produces a dual in vitro effect: cytotoxic anti-tumor activity and lymphocyte activation', BMC Cancer, 6, pp. 119. doi:10.1186/1471-2407-6-119 Preclinical
https://doi.org/10.1186/1471-2407-6-119 - 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
- Atazhanova, G., Ishmuratova, M., Levaya, Y., Smagulov, M. and Lakomkina, Y (2024) 'The Genus Hyssopus: Traditional Use, Phytochemicals and Pharmacological Properties', Plants (Basel), 13(12), pp. 1683. doi:10.3390/plants13121683 Traditional / reference
https://doi.org/10.3390/plants13121683 - Sharifi-Rad, J., Quispe, C., Kumar, M., Akram, M. et al (2022) 'Hyssopus Essential Oil: An Update of Its Phytochemistry, Biological Activities, and Safety Profile', Oxidative Medicine and Cellular Longevity, 2022, pp. 8442734. doi:10.1155/2022/8442734 Traditional / reference
https://doi.org/10.1155/2022/8442734 - Gharakhani-Beni, A., Ghasemi Pirbalouti, A., Javanmard, H., Soleymani, A. and Golparvar, A (2022) 'Chemical compositions, yield and antioxidant activity of the essential oil of hyssop (Hyssopus officinalis L.) under intercropping with fenugreek', Natural Product Research, 37(4), pp. 675-680. doi:10.1080/14786419.2022.2078971 Preclinical
https://doi.org/10.1080/14786419.2022.2078971 - Fatahinezhad, N., Lorigooini, Z., Arabi, M., Rabiei, Z., Sheykhshabani, S.K. and Rafieian-Kopaei, M (2022) 'Effects of Hyssopus Officinalis Hydroalcoholic Extract on Pentylenetetrazol-Induced Convulsive Seizures in Rat', Neurochemical Research, 47(12), pp. 3792-3804. doi:10.1007/s11064-022-03759-x Preclinical
https://doi.org/10.1007/s11064-022-03759-x - Tahir, M., Rahman, M.A. and Khushtar, M (2019) 'Gastroprotective effect of Hyssopus officinalis L. leaves via reduction of oxidative stress in indomethacin-induced gastric ulcer in experimental rats', Drug and Chemical Toxicology, 45(1), pp. 291-300. doi:10.1080/01480545.2019.1685537 Preclinical
https://doi.org/10.1080/01480545.2019.1685537 - Khaksar, S., Kiarostami, K. and Alinaghi, S (2022) 'The Effects of Methanol Extracts of Hyssopus officinalis on Model of Induced Glioblastoma Multiforme (GBM) in Rats', Journal of Molecular Neuroscience, 72(9), pp. 2045-2066. doi:10.1007/s12031-022-02058-y Preclinical
https://doi.org/10.1007/s12031-022-02058-y - Ghasempour, M., Hosseini, M., Soltani-Zangbar, M.S., Motavalli, R., Aghebati-Maleki, L., Dolati, S., Mehdizadeh, A., Yousefi, M. and Ahmadian Heris, J (2022) 'The impact of Hyssop (Hyssopus officinalis) extract on activation of endosomal toll like receptors and their downstream signaling pathways', BMC Research Notes, 15(1), pp. 366. doi:10.1186/s13104-022-06253-3 Preclinical
https://doi.org/10.1186/s13104-022-06253-3 - Ma, X., Ma, X., Ma, Z., Wang, J., Sun, Z., Yu, W., Li, F. and Ding, J (2014) 'Effect of Hyssopus officinalis L. on inhibiting airway inflammation and immune regulation in a chronic asthmatic mouse model', Experimental and Therapeutic Medicine, 8(5), pp. 1371-1374. doi:10.3892/etm.2014.1978 Preclinical
https://doi.org/10.3892/etm.2014.1978 - Gholami, M., Jafari, F., Baradaran, Z., Amri, J., Azhdari-Zarmehri, H. and Sadegh, M (2020) 'Effects of aqueous extract of Hyssopus officinalis on seizures induced by pentylenetetrazole and hippocampus mRNA level of iNOS in rats', Avicenna Journal of Phytomedicine, 10(3), pp. 213-221. Preclinical
https://scholar.google.com/scholar?q=Effects%20of%20aqueous%20extract%20of%20Hyssopus%20officinalis%20on%20seizures%20induced%20by%20pentylenetetrazole%20and%20hippocampus%20mRNA%20level%20of%20iNOS%20in%20rats - Guerrini, A., Sacchetti, G., Echeverria Guevara, M.P., Paganetto, G., Grandini, A., Maresca, I., Menghini, L., Di Martino, L., Marengo, A. and Tacchini, M (2021) 'Wild Italian Hyssopus officinalis subsp. aristatus (Godr.) Nyman: From Morphological and Phytochemical Evidences to Biological Activities', Plants, 10(4), pp. 631. doi:10.3390/plants10040631 Preclinical
https://doi.org/10.3390/plants10040631 - Rashidi, S., Eikani, M.H. and Ardjmand, M (2018) 'Extraction of Hyssopus officinalis L. essential oil using instant controlled pressure drop process', Journal of Chromatography A, 1579, pp. 9-19. doi:10.1016/j.chroma.2018.10.020 Preclinical
https://doi.org/10.1016/j.chroma.2018.10.020 - Polaki, S., Stamatelopoulou, V., Kotsou, K., Chatzimitakos, T., Athanasiadis, V., Bozinou, E. and Lalas, S.I (2024) 'Exploring Conventional and Green Extraction Methods for Enhancing the Polyphenol Yield and Antioxidant Activity of Hyssopus officinalis Extracts', Plants, 13(15), pp. 2105. doi:10.3390/plants13152105 Preclinical
https://doi.org/10.3390/plants13152105 - Health Canada, Natural and Non-prescription Health Products Directorate (2026) 'Natural Health Product Monograph: Hyssop - Hyssopus officinalis'. Available at: https://webprod.hc-sc.gc.ca/nhpid-bdipsn/dbImages/mono_hyssop_english.pdf Traditional / reference
https://webprod.hc-sc.gc.ca/nhpid-bdipsn/dbImages/mono_hyssop_english.pdf - Royal Botanic Gardens, Kew (n.d.). Available at: https://powo.science.kew.org Traditional / reference
https://powo.science.kew.org - 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
Generated automatically from the Omnia Sana plant database and its cited sources. For educational purposes only — not medical advice. Always consult a qualified practitioner before using medicinal plants.