🌿 Calendula

Calendula officinalis
herbs Annual flower/herb (self-seeds)
Illustration of Calendula
☀️ Sun
Full sun to partial shade; afternoon shade in hot climates.
💧 Water
Moderate; somewhat drought-tolerant. Consistent moisture produces best blooms.
🗺️ Zones
Annual everywhere; self-seeds readily in most zones
🪴 Soil Type
Well-draining, moderately rich; pH 6.0-7.0. Tolerates poor soil.
🧪 Soil pH
5.5-7.0 (tolerates wide range; prefers well-drained)
📏 Spacing
12-18 inches apart
📐 Height
12-24 inches
📅 Days to Maturity
45-60 days from seed to flower

🍴 Edible Parts

🍽️ ["Petals ('poor man's saffron' \u2014 used for color🍽️ not flavor)"🍽️ "Young leaves (bitter)"🍽️ "Flower heads"]

🤝 Companions (7)

🤝 Tomatoes
Repels tomato hornworms and whiteflies; attracts beneficial insects. Classic companion.
🤝 Beans
Repels bean beetles and aphids.
Repels asparagus beetles; attractive border plant.
🤝 Potatoes
Repels Colorado potato beetles.
🤝 Carrots
Helps repel carrot rust fly.
🤝 Cucumbers
Repels cucumber beetles.
🤝 Almost all vegetables
Calendula is one of the best companion plants overall — attracts pollinators, repels pests, acts as a trap crop for aphids.

⚠️ Keep Apart (1)

⚠️ None significant
Calendula is universally compatible. Some evidence suggests it may be antagonistic to a few herbs, but this is poorly documented.

💊 Medicinal Uses

{"conditions_treated": ["Skin wounds, cuts, and abrasions (one of the best wound-healing herbs \u2014 stimulates tissue regeneration)", "Burns and sunburn (soothing, cooling, promotes healing)", "Eczema, psoriasis, and dry skin (anti-inflammatory, moisturizing)", "Diaper rash (gentle and effective \u2014 standard ingredient in natural baby products)", "Varicose veins and hemorrhoids (topical anti-inflammatory)", "Minor fungal infections (antifungal \u2014 ringworm, athlete's foot)", "Mouth ulcers and sore gums (calendula mouthwash)", "Conjunctivitis (calendula eyewash \u2014 must be well-strained)", "Lymphatic congestion (internal use \u2014 stimulates lymphatic drainage)", "Digestive inflammation (gastritis, ulcers \u2014 internal demulcent, anti-inflammatory)", "Menstrual cramps and irregular cycles (emmenagogue)"], "preparation_methods": ["Calendula salve: Dried flowers infused in oil (olive or coconut), strained, mixed with beeswax \u2014 THE standard wound-healing salve for every home apothecary", "Calendula oil: Fresh or dried flowers in carrier oil; 2-4 weeks solar or gentle heat infusion; use directly on skin or in salves", "Tea/infusion: 1-2 tsp dried petals steeped 10-15 min; drink for lymphatic support and digestive inflammation; also used as mouthwash or skin wash", "Eyewash: TEASPOON of well-strained, cooled calendula tea; use sterile technique for conjunctivitis", "Tincture: 1:5 in 60% alcohol; 2-4ml 3x daily for lymphatic support and internal inflammation", "Compress: Cloth soaked in strong calendula infusion for wounds, varicose veins, hemorrhoids", "Bath: Strong calendula infusion added to bathwater for widespread skin conditions and children's eczema", "Cream: Water-based calendula cream for conditions needing moisture (vs. salve for protection)"], "active_compounds": ["Triterpenoid saponins", "Flavonoids (quercetin, isorhamnetin)", "Carotenoids (calendulin)", "Polysaccharides", "Essential oil"], "toxicity_warnings": "Very safe herb \u2014 one of the safest topical remedies. Avoid internal use during pregnancy (emmenagogue \u2014 may stimulate uterine contractions). Rare allergic reactions in Asteraceae-sensitive individuals (ragweed, daisies). Do not use on deep or infected wounds without medical supervision (may heal surface too quickly, trapping infection)."}

📜 History & Traditional Uses

{"medieval": "Called 'Mary's Gold' \u2014 associated with the Virgin Mary. Used during plague times. Strewing herb and pot marigold in cooking. Used for 'measles and smallpox' externally. Macer (medieval herbal) recommended it for wounds and 'drawing out poison.'", "ancient": "Ancient Egyptians used calendula for skin rejuvenation. Greeks used it for wounds. Romans named it 'calendula' because it blooms every month ('calends').", "folk_medicine": "One of the most universally used wound herbs. American Civil War surgeons used calendula for battlefield wounds. Used in European folk medicine as a 'cancer herb' (external tumors). German Commission E approved calendula for wound healing and oral inflammation. Appears in virtually every traditional European herbal."}