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Habitats
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Cultivated Beds;
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Edible Uses
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Edible Parts: Flowers; Leaves.
Edible Uses: Colouring; Tea.
Leaves - raw[14, 21]. When eaten they first of all impart a viscid sweetness, followed by a strong penetrating taste of a saline nature[4]. They are very rich in vitamins and minerals and are similar to Taraxacum officinale (Dandelion) in nutritional value[179]. Fresh petals are chopped and added to salads[183]. The dried petals have a more concentrated flavour and are used as a seasoning in soups, cakes etc[183]. High in vitamins A and C[218]. An edible yellow dye is obtained from the petals[46]. A saffron substitute[21], it is used to colour and flavour rice, soups etc[2, 14, 27, 33]. It is also used as a hair rinse, adding golden tints to brown or auburn hair[201]. A tea is made from the petals and flowers, that made from the petals is less bitter[183]. There is no record of the seed being edible, but it contains up to 37% protein and 46% oil[218].
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Medicinal Uses
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Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.
Antiphlogistic; Antiseptic; Antispasmodic; Aperient; Astringent; Cholagogue; Diaphoretic; Emmenagogue; Homeopathy; Skin; Stimulant;
Vulnerary; Warts.
Pot marigold is one of the best known and versatile herbs in Western herbal medicine and is also a popular domestic remedy[4, 254]. It is, above all, a remedy for skin problems and is applied externally to bites and stings, sprains, wounds, sore eyes, varicose veins etc[4, 254]. It is also a cleansing and detoxifying herb and is taken internally in treating fevers and chronic infections[4, 254]. Only the common deep-orange flowered variety is considered to be of medicinal value[4]. The whole plant, but especially the flowers and the leaves, is antiphlogistic, antiseptic, antispasmodic, aperient, astringent, cholagogue, diaphoretic, emmenagogue, skin, stimulant and vulnerary[4, 7, 9, 21, 46, 165, 201]. The leaves can be used fresh or dried, they are best harvested in the morning of a fine sunny day just after the dew has dried from them[4]. The flowers are also used fresh or dried, for drying they are harvested when fully open and need to be dried quickly in the shade[4]. A tea of the petals tones up the circulation and, taken regularly, can ease varicose veins[201]. An application of the crushed stems to corns and warts will soon render them easily removable[7]. The leaves, blossoms and buds are used to make a homeopathic remedy[232]. It is used internally in order to speed the healing of wounds[232]. The German Commission E Monographs, a therapeutic guide to herbal medicine, approve Calendula officinalis for inflammation of the mouth and pharynx (throat), wounds and burns(see [302] for critics of commission E).
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Other Uses
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Compost; Cosmetic; Dye; Essential; Repellent; Weather forecasting.
The growing plant acts as an insect deterrent[14], it reduces the soil eelworm population[24]. The flowers are used cosmetically. They can be used in skin lotions and when added to hair shampoos will lighten the hair colour[244]. The flowers are an alternative ingredient of 'Quick Return' compost activator[32]. This is a dried and powdered mixture of several herbs that can be added to a compost heap in order to speed up bacterial activity and thus shorten the time needed to make the compost[K]. A yellow dye is obtained from the boiled flowers[2, 4, 46]. An essential oil is obtained from the plant[7]. It is used rather sparingly, in view of the difficulty in obtaining it, in perfumes that have a rather sharp tang[7]. The flowers close when wet weather is likely to occur and they can therefore be used as a rough means of weather forecasting[7].
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Cultivation details
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An easily grown plant, it succeeds in any well-drained soil[200, 268], though it prefers a good loam and requires a sunny or at least partially sunny position[4, 15, 200, 268]. Plants flower best when they are grown in a poor soil[108]. Tolerates a pH in the range 4.5 to 8.3. The pot marigold is a very ornamental plant that is commonly grown in the flower garden, and occasionally as a culinary herb, there are some named varieties[183]. When well-sited it usually self-sows freely and will maintain itself if allowed[1, 4]. The flowers are sensitive to variations in temperature and dampness, closing when it is dark and when rain is expected[7, 244]. All parts of the plant are pungently scented[245]. The growing plant attracts hoverflies to the garden, the young of which are fairly efficient eaters of aphids[24, 201]. The flowers are attractive to bees[108]. Marigolds are good companion plants, they grow well with tomatoes[14]. Cucumber mosaic disease and powdery mildew can cause problems with this plant[188].
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Propagation
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Seed - sow in situ from spring to early summer and again in September. The seed germinates best in darkness and usually within 1 - 2 weeks at 21°c[138]. The plant often self-sows freely.
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 You can download this page as a PDF
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Links / References
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[K] Ken Fern Notes from observations, tasting etc at Plants For A Future and on field trips.
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[1]F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956
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Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaces in 1992 by a new dictionary (see [200]).
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[2]Hedrick. U. P. Sturtevant's Edible Plants of the World.
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Lots of entries, quite a lot of information in most entries and references.
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[4]Grieve. A Modern Herbal.
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Not so modern (1930's?) but lots of information, mainly temperate plants.
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[7]Chiej. R. Encyclopaedia of Medicinal Plants.
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Covers plants growing in Europe. Also gives other interesting information on the plants. Good photographs.
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[9]Launert. E. Edible and Medicinal Plants.
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Covers plants in Europe. a drawing of each plant, quite a bit of interesting information.
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[14]Holtom. J. and Hylton. W. Complete Guide to Herbs.
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A good herbal.
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[15]Bryan. J. and Castle. C. Edible Ornamental Garden.
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A small book with interesting ideas for edible plants in the ornamental garden.
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[21]Lust. J. The Herb Book.
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Lots of information tightly crammed into a fairly small book.
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[24]Baines. C. Making a Wildlife Garden.
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Fairly good with lots of ideas about creating wildlife areas in the garden.
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[27]Vilmorin. A. The Vegetable Garden.
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A reprint of a nineteenth century classic, giving details of vegetable varieties. Not really that informative though.
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[32]Bruce. M. E. Commonsense Compost Making.
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Excellent little booklet dealing with how to make compost by using herbs to activate the heap. Gives full details of the herbs that are used.
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[33]Organ. J. Rare Vegetables for Garden and Table.
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Unusual vegetables that can be grown outdoors in Britain. A good guide.
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[46]Uphof. J. C. Th. Dictionary of Economic Plants.
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An excellent and very comprehensive guide but it only gives very short descriptions of the uses without any details of how to utilize the plants. Not for the casual reader.
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[108]International Bee Research Association. Garden Plants Valuable to Bees.
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The title says it all.
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[138]Bird. R. (Editor) Growing from Seed. Volume 3.
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Very readable magazine with lots of information on propagation.
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[165]Mills. S. Y. The Dictionary of Modern Herbalism.
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An excellent small herbal.
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[179]Reid. B. E. Famine Foods of the Chiu-Huang Pen-ts'ao.
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A translation of an ancient Chinese book on edible wild foods. Fascinating.
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[183]Facciola. S. Cornucopia - A Source Book of Edible Plants.
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Excellent. Contains a very wide range of conventional and unconventional food plants (including tropical) and where they can be obtained (mainly N. American nurseries but also research institutes and a lot of other nurseries from around the world.
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[188]Brickell. C. The RHS Gardener's Encyclopedia of Plants and Flowers
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Excellent range of photographs, some cultivation details but very little information on plant uses.
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[200]Huxley. A. The New RHS Dictionary of Gardening. 1992.
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Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
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[201]Allardice.P. A - Z of Companion Planting.
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A well produced and very readable book.
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[218]Duke. J. A. and Ayensu. E. S. Medicinal Plants of China
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Details of over 1,200 medicinal plants of China and brief details of their uses. Often includes an analysis, or at least a list of constituents. Heavy going if you are not into the subject.
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[232]Castro. M. The Complete Homeopathy Handbook.
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A concise beginner's guide to the subject. Very readable.
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[244]Phillips. R. & Foy. N. Herbs
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Deals with all types of herbs including medicinal, culinary, scented and dye plants. Excellent photographs with quite good information on each plant.
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[245]Genders. R. Scented Flora of the World.
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An excellent, comprehensive book on scented plants giving a few other plant uses and brief cultivation details. There are no illustrations.
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[254]Chevallier. A. The Encyclopedia of Medicinal Plants
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An excellent guide to over 500 of the more well known medicinal herbs from around the world.
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[268]Stuart. M. (Editor) The Encyclopedia of Herbs and Herbalism
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Excellent herbal with good concise information on over 400 herbs.
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[301]Karalliedde. L. and Gawarammana. I. Traditional Herbal Medicines
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A guide to the safer use of herbal medicines.
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[302]From Wikipedia, the free encyclopedia Commission E
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http://en.wikipedia.org/wiki/Commission_E
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Subject : Calendula officinalis
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