Plant MedicineCalendula

Calendula

Calendula officinalis

Family: Asteraceae

Also known as: Pot marigold, Garden marigold, Gold bloom, Common marigold

At a glance

Best for: Wound healing, Skin inflammation, Dermatitis, Oral health, Digestive ulcers
Parts used: Flowers
Common forms: Topical cream, Tincture, Tea, Infused oil, Ointment
Evidence level: Promising
Cautions: Avoid if allergic to ragweed/daisies; Avoid in pregnancy (uterine stimulant at high doses)
Immune
Digestive
Topical cream
Tincture
Tea
Infused oil
Ointment
Mediterranean
Southern Europe

What it is

Calendula is a bright-flowered annual herb from the Mediterranean. Its flowers are rich in triterpenoids (oleanolic acid, ursolic acid), flavonoids (quercetin, isorhamnetin), carotenoids, and polysaccharides—compounds responsible for its wound-healing and anti-inflammatory effects.

Traditional use

Used throughout European herbal medicine for centuries for skin conditions, wound healing, digestive inflammation, and fever. Common in 16th century apothecaries. Used in World War I to dress wounds when supplies were limited.

What modern research suggests (Promising)

RCTs show calendula cream superior to trolamine for acute dermatitis during radiotherapy. Studies demonstrate accelerated wound healing compared to petroleum jelly. Good evidence for oral mucositis prevention. Anti-inflammatory effects confirmed in vitro and in animal studies.

How people use it

Topically: apply calendula cream, ointment, or infused oil directly to skin 2–3 times daily. As a tea: steep 1–2 teaspoons of dried flowers in hot water for 10 minutes—gargle for oral health or drink for digestive issues. As a tincture: 1–4ml 3 times daily for internal use.

Safety + interactions

One of the safest herbs available. Rare allergic reactions in people sensitive to Asteraceae family plants. Avoid high oral doses in pregnancy (may stimulate uterus). Topical use is very safe even for infants.

May interact with: Sedatives (theoretical)

Name clarity note

Calendula officinalis (pot marigold) is commonly confused with ornamental marigolds (Tagetes species), which are not the same plant and not interchangeable medicinally. Tagetes are often sold as 'marigold' at garden centres. Always use Calendula officinalis for medicinal purposes.

Quality notes

Look for bright orange-yellow flowers with a strong resinous scent—this indicates high flavonoid content. Avoid calendula with pale, faded flowers. Infused oil quality depends on the olive or other carrier oil used. For topical products, water content should be minimal for potency.

Community Insights

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Disclaimer: This content is educational and not medical advice. Always consult a qualified healthcare provider before using any herbs or supplements, especially if you are pregnant, nursing, taking medications, or have a medical condition.

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