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Useful Temperate Plants

Calendula officinalis

L.

Asteraceae

+ Synonyms

Calendula aurantiaca Kotschy ex Boiss.

Calendula eriocarpa DC.

Calendula hydruntina (Fiori) Lanza

Calendula prolifera Hort. ex Steud.

Calendula sinuata aurantiaca (Klotzsch ex Boiss.) Boiss.

Caltha officinalis (L.) Moench

Common Name: Pot Marigold

No Image.

General Information

Calendula officinalis is an erect or prostrate, much-branched annual plant with a deeply penetrating taproot; it can grow 40 - 70cm tall. The plant occasionally perennates[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
,
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
].
Pot marigold is commonly used in modern herbalism and is also used as a food, flavouring and source of materials. It is often cultivated on a domestic scale and also commercially for medicinal use. A very ornamental plant, it is often grown in the flower garden where it helps to repel insects[
183
Title
Cornucopia - A Source Book of Edible Plants.
Publication
 
Author
Facciola. S.
Publisher
Kampong Publications
Year
1990
ISBN
0-9628087-0-9
Description
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.
].

Known Hazards

None known

Botanical References

200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.

Range

Not known in the wild, the plant probably originated in the Mediterranean region

Habitat

The original habitat is obscure but it is found as a garden escape on waste, cultivated and arable land and along roadsides[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
].

Properties

Edibility Rating *  *  *
Medicinal Rating *  *  *  *
Other Uses Rating *  *  *
HabitAnnual
Height0.60 m
PollinatorsBees
Cultivation StatusCultivated, Ornamental, Wild

Cultivation Details

Calendula officinalis originated in the Mediterranean region and can be grown as a summer annual in most parts of the temperate zone. It grows best in areas where annual daytime temperatures are within the range 16 - 26°c, but can tolerate 8 - 30°c[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
]. It prefers a mean annual rainfall in the range 500 - 800mm, but tolerates 300 - 2,500mm[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
].
An easily grown plant, it succeeds in any well-drained soil[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
,
268
Title
The Encyclopedia of Herbs and Herbalism
Publication
 
Author
Stuart. M. (Editor)
Publisher
Orbis Publishing. London.
Year
1979
ISBN
0-85613-067-2
Description
Excellent herbal with good concise information on over 400 herbs.
], though it prefers a good loam and requires a sunny or at least partially sunny position[
4
Title
A Modern Herbal.
Publication
 
Author
Grieve.
Publisher
Penguin
Year
1984
ISBN
0-14-046-440-9
Description
Not so modern (1930's?) but lots of information, mainly temperate plants.
,
15
Title
Edible Ornamental Garden.
Publication
 
Author
Bryan. J. and Castle. C.
Publisher
Pitman Publishing
Year
1976
ISBN
0-273-00098-5
Description
A small book with interesting ideas for edible plants in the ornamental garden.
,
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
,
268
Title
The Encyclopedia of Herbs and Herbalism
Publication
 
Author
Stuart. M. (Editor)
Publisher
Orbis Publishing. London.
Year
1979
ISBN
0-85613-067-2
Description
Excellent herbal with good concise information on over 400 herbs.
]. Plants flower best when they are grown in a poor soil[
108
Title
Garden Plants Valuable to Bees.
Publication
 
Author
International Bee Research Association.
Publisher
International Bee Research Association.
Year
1981
ISBN
-
Description
The title says it all.
]. Prefers a pH in the range 5.5 - 7, tolerating 4.5 - 8.3[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
].
There are some named varieties[
183
Title
Cornucopia - A Source Book of Edible Plants.
Publication
 
Author
Facciola. S.
Publisher
Kampong Publications
Year
1990
ISBN
0-9628087-0-9
Description
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.
]. When well-sited the plant usually self-sows freely and will maintain itself if allowed[
1
Title
RHS Dictionary of Plants plus Supplement. 1956
Publication
 
Author
F. Chittendon.
Publisher
Oxford University Press
Year
1951
ISBN
-
Description
Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaced in 1992 by a new dictionary (see [200]).
,
4
Title
A Modern Herbal.
Publication
 
Author
Grieve.
Publisher
Penguin
Year
1984
ISBN
0-14-046-440-9
Description
Not so modern (1930's?) but lots of information, mainly temperate plants.
].
The flowers are sensitive to variations in temperature and dampness, closing when it is dark and when rain is expected[
7
Title
Encyclopaedia of Medicinal Plants.
Publication
 
Author
Chiej. R.
Publisher
MacDonald
Year
1984
ISBN
0-356-10541-5
Description
Covers plants growing in Europe. Also gives other interesting information on the plants. Good photographs.
,
244
Title
Herbs
Publication
 
Author
Phillips. R. & Foy. N.
Publisher
Pan Books Ltd. London.
Year
1990
ISBN
0-330-30725-8
Description
Deals with all types of herbs including medicinal, culinary, scented and dye plants. Excellent photographs with quite good information on each plant.
].
Average yield of the dry petals is 200 - 300 kilos per hectare, while yields of the complete inflorence may be 500 - 800 kilos[
418
Title
Ecocrop
Publication
 
Author
 
Website
http://ecocrop.fao.org/ecocrop/srv/en/home
Publisher
 
Year
0
ISBN
 
Description
Basic information on a wide range of useful plants, plus details of environmental needs where available.
].
All parts of the plant are pungently scented[
245
Title
Scented Flora of the World.
Publication
 
Author
Genders. R.
Publisher
Robert Hale. London.
Year
1994
ISBN
0-7090-5440-8
Description
An excellent, comprehensive book on scented plants giving a few other plant uses and brief cultivation details. There are no illustrations.
].

Edible Uses

Leaves - raw[
14
Title
Complete Guide to Herbs.
Publication
 
Author
Holtom. J. and Hylton. W.
Publisher
Rodale Press
Year
1979
ISBN
0-87857-262-7
Description
A good herbal.
,
21
Title
The Herb Book.
Publication
 
Author
Lust. J.
Publisher
Bantam books
Year
1983
ISBN
0-553-23827-2
Description
Lots of information tightly crammed into a fairly small book.
]. When eaten they first of all impart a viscid sweetness, followed by a strong penetrating taste of a saline nature[
4
Title
A Modern Herbal.
Publication
 
Author
Grieve.
Publisher
Penguin
Year
1984
ISBN
0-14-046-440-9
Description
Not so modern (1930's?) but lots of information, mainly temperate plants.
]. They are very rich in vitamins and minerals and are similar to Taraxacum officinale (Dandelion) in nutritional value[
179
Title
Famine Foods listed in the Chiu-Huang Pen-ts'ao.
Publication
 
Author
Reid. B. E.
Publisher
Southern Materials Centre; Taipei
Year
1977
ISBN
-
Description
A translation of an ancient Chinese book on edible wild foods. Fascinating.
].

Fresh petals are chopped and added to salads[
183
Title
Cornucopia - A Source Book of Edible Plants.
Publication
 
Author
Facciola. S.
Publisher
Kampong Publications
Year
1990
ISBN
0-9628087-0-9
Description
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.
]. The dried petals have a more concentrated flavour and are used as a seasoning in soups, cakes etc[
183
Title
Cornucopia - A Source Book of Edible Plants.
Publication
 
Author
Facciola. S.
Publisher
Kampong Publications
Year
1990
ISBN
0-9628087-0-9
Description
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.
]. High in vitamins A and C[
218
Title
Medicinal Plants of China
Publication
 
Author
Duke. J. A. and Ayensu. E. S.
Publisher
Reference Publications, Inc.
Year
1985
ISBN
0-917256-20-4
Description
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.
].

An edible yellow dye is obtained from the petals[
46
Title
Dictionary of Economic Plants.
Publication
 
Author
Uphof. J. C. Th.
Publisher
Weinheim
Year
1959
ISBN
-
Description
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.
]. A saffron substitute[
21
Title
The Herb Book.
Publication
 
Author
Lust. J.
Publisher
Bantam books
Year
1983
ISBN
0-553-23827-2
Description
Lots of information tightly crammed into a fairly small book.
], it is used to colour and flavour rice, soups etc[
2
Title
Sturtevant's Edible Plants of the World.
Publication
 
Author
Hedrick. U. P.
Publisher
Dover Publications
Year
1972
ISBN
0-486-20459-6
Description
Lots of entries, quite a lot of information in most entries and references.
,
14
Title
Complete Guide to Herbs.
Publication
 
Author
Holtom. J. and Hylton. W.
Publisher
Rodale Press
Year
1979
ISBN
0-87857-262-7
Description
A good herbal.
,
27
Title
The Vegetable Garden.
Publication
 
Author
Vilmorin. A.
Publisher
Ten Speed Press
Year
 
ISBN
0-89815-041-8
Description
A reprint of a nineteenth century classic, giving details of vegetable varieties. Not really that informative though.
,
33
Title
Rare Vegetables for Garden and Table.
Publication
 
Author
Organ. J.
Publisher
Faber
Year
1960
ISBN
-
Description
Unusual vegetables that can be grown outdoors in Britain. A good guide.
]. It is also used as a hair rinse, adding golden tints to brown or auburn hair[
201
Title
A - Z of Companion Planting.
Publication
 
Author
Allardice.P.
Publisher
Cassell Publishers Ltd.
Year
1993
ISBN
0-304-34324-2
Description
A well produced and very readable book.
].

A tea is made from the petals and flowers, that made from the petals is less bitter[
183
Title
Cornucopia - A Source Book of Edible Plants.
Publication
 
Author
Facciola. S.
Publisher
Kampong Publications
Year
1990
ISBN
0-9628087-0-9
Description
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.
].

There is no record of the seed being edible, but it contains up to 37% protein and 46% oil[
218
Title
Medicinal Plants of China
Publication
 
Author
Duke. J. A. and Ayensu. E. S.
Publisher
Reference Publications, Inc.
Year
1985
ISBN
0-917256-20-4
Description
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.
].

Medicinal

Pot marigold is one of the best known and versatile herbs in Western herbal medicine and is also a popular domestic remedy[
4
Title
A Modern Herbal.
Publication
 
Author
Grieve.
Publisher
Penguin
Year
1984
ISBN
0-14-046-440-9
Description
Not so modern (1930's?) but lots of information, mainly temperate plants.
,
254
Title
The Encyclopedia of Medicinal Plants
Publication
 
Author
Chevallier. A.
Publisher
Dorling Kindersley. London
Year
1996
ISBN
9-780751-303148
Description
An excellent guide to over 500 of the more well known medicinal herbs from around the world.
]. 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
Title
A Modern Herbal.
Publication
 
Author
Grieve.
Publisher
Penguin
Year
1984
ISBN
0-14-046-440-9
Description
Not so modern (1930's?) but lots of information, mainly temperate plants.
,
254
Title
The Encyclopedia of Medicinal Plants
Publication
 
Author
Chevallier. A.
Publisher
Dorling Kindersley. London
Year
1996
ISBN
9-780751-303148
Description
An excellent guide to over 500 of the more well known medicinal herbs from around the world.
]. It is also a cleansing and detoxifying herb and is taken internally in treating fevers and chronic infections[
4
Title
A Modern Herbal.
Publication
 
Author
Grieve.
Publisher
Penguin
Year
1984
ISBN
0-14-046-440-9
Description
Not so modern (1930's?) but lots of information, mainly temperate plants.
,
254
Title
The Encyclopedia of Medicinal Plants
Publication
 
Author
Chevallier. A.
Publisher
Dorling Kindersley. London
Year
1996
ISBN
9-780751-303148
Description
An excellent guide to over 500 of the more well known medicinal herbs from around the world.
]. Only the common deep-orange flowered variety is considered to be of medicinal value[
4
Title
A Modern Herbal.
Publication
 
Author
Grieve.
Publisher
Penguin
Year
1984
ISBN
0-14-046-440-9
Description
Not so modern (1930's?) but lots of information, mainly temperate plants.
].

The whole plant, but especially the flowers and the leaves, is antiphlogistic, antiseptic, antispasmodic, aperient, astringent, cholagogue, diaphoretic, emmenagogue, skin, stimulant and vulnerary[
4
Title
A Modern Herbal.
Publication
 
Author
Grieve.
Publisher
Penguin
Year
1984
ISBN
0-14-046-440-9
Description
Not so modern (1930's?) but lots of information, mainly temperate plants.
,
7
Title
Encyclopaedia of Medicinal Plants.
Publication
 
Author
Chiej. R.
Publisher
MacDonald
Year
1984
ISBN
0-356-10541-5
Description
Covers plants growing in Europe. Also gives other interesting information on the plants. Good photographs.
,
9
Title
Edible and Medicinal Plants.
Publication
 
Author
Launert. E.
Publisher
Hamlyn
Year
1981
ISBN
0-600-37216-2
Description
Covers plants in Europe. a drawing of each plant, quite a bit of interesting information.
,
21
Title
The Herb Book.
Publication
 
Author
Lust. J.
Publisher
Bantam books
Year
1983
ISBN
0-553-23827-2
Description
Lots of information tightly crammed into a fairly small book.
,
46
Title
Dictionary of Economic Plants.
Publication
 
Author
Uphof. J. C. Th.
Publisher
Weinheim
Year
1959
ISBN
-
Description
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.
,
165
Title
The Dictionary of Modern Herbalism.
Publication
 
Author
Mills. S. Y.
Publisher
 
Year
 
ISBN
 
Description
An excellent small herbal.
,
201
Title
A - Z of Companion Planting.
Publication
 
Author
Allardice.P.
Publisher
Cassell Publishers Ltd.
Year
1993
ISBN
0-304-34324-2
Description
A well produced and very readable book.
]. 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
Title
A Modern Herbal.
Publication
 
Author
Grieve.
Publisher
Penguin
Year
1984
ISBN
0-14-046-440-9
Description
Not so modern (1930's?) but lots of information, mainly temperate plants.
]. 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
Title
A Modern Herbal.
Publication
 
Author
Grieve.
Publisher
Penguin
Year
1984
ISBN
0-14-046-440-9
Description
Not so modern (1930's?) but lots of information, mainly temperate plants.
].

A tea of the petals tones up the circulation and, taken regularly, can ease varicose veins[
201
Title
A - Z of Companion Planting.
Publication
 
Author
Allardice.P.
Publisher
Cassell Publishers Ltd.
Year
1993
ISBN
0-304-34324-2
Description
A well produced and very readable book.
].

An application of the crushed stems to corns and warts will soon render them easily removable[
7
Title
Encyclopaedia of Medicinal Plants.
Publication
 
Author
Chiej. R.
Publisher
MacDonald
Year
1984
ISBN
0-356-10541-5
Description
Covers plants growing in Europe. Also gives other interesting information on the plants. Good photographs.
].

The leaves, blossoms and buds are used to make a homeopathic remedy[
232
Title
The Complete Homeopathy Handbook.
Publication
 
Author
Castro. M.
Publisher
Macmillan. London.
Year
1990
ISBN
0-333-55581-3
Description
A concise beginner's guide to the subject. Very readable.
]. It is used internally in order to speed the healing of wounds[
232
Title
The Complete Homeopathy Handbook.
Publication
 
Author
Castro. M.
Publisher
Macmillan. London.
Year
1990
ISBN
0-333-55581-3
Description
A concise beginner's guide to the subject. Very readable.
].

Agroforestry Uses:

The growing plant acts as an insect deterrent[
14
Title
Complete Guide to Herbs.
Publication
 
Author
Holtom. J. and Hylton. W.
Publisher
Rodale Press
Year
1979
ISBN
0-87857-262-7
Description
A good herbal.
], it reduces the soil eelworm population[
24
Title
Making a Wildlife Garden.
Publication
 
Author
Baines. C.
Publisher
 
Year
 
ISBN
 
Description
Fairly good with lots of ideas about creating wildlife areas in the garden.
].
The growing plant attracts hoverflies to the garden, the young of which are fairly efficient eaters of aphids[
24
Title
Making a Wildlife Garden.
Publication
 
Author
Baines. C.
Publisher
 
Year
 
ISBN
 
Description
Fairly good with lots of ideas about creating wildlife areas in the garden.
,
201
Title
A - Z of Companion Planting.
Publication
 
Author
Allardice.P.
Publisher
Cassell Publishers Ltd.
Year
1993
ISBN
0-304-34324-2
Description
A well produced and very readable book.
]. The flowers are attractive to bees[
108
Title
Garden Plants Valuable to Bees.
Publication
 
Author
International Bee Research Association.
Publisher
International Bee Research Association.
Year
1981
ISBN
-
Description
The title says it all.
]. Marigolds are good companion plants, they grow well with tomatoes[
14
Title
Complete Guide to Herbs.
Publication
 
Author
Holtom. J. and Hylton. W.
Publisher
Rodale Press
Year
1979
ISBN
0-87857-262-7
Description
A good herbal.
].
Cucumber mosaic disease and powdery mildew can cause problems with this plant[
188
Title
The RHS Gardener's Encyclopedia of Plants and Flowers
Publication
 
Author
Brickell. C.
Publisher
Dorling Kindersley Publishers Ltd.
Year
1990
ISBN
0-86318-386-7
Description
Excellent range of photographs, some cultivation details but very little information on plant uses.
].

Other Uses

The flowers are used cosmetically. They can be used in skin lotions and when added to hair shampoos will lighten the hair colour[
244
Title
Herbs
Publication
 
Author
Phillips. R. & Foy. N.
Publisher
Pan Books Ltd. London.
Year
1990
ISBN
0-330-30725-8
Description
Deals with all types of herbs including medicinal, culinary, scented and dye plants. Excellent photographs with quite good information on each plant.
].

The flowers are an alternative ingredient of 'Quick Return' compost activator[
32
Title
Commonsense Compost Making.
Publication
 
Author
Bruce. M. E.
Publisher
Faber
Year
1977
ISBN
0-571-09990-4
Description
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.
]. 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
Title
Plants for a Future
Author
Ken Fern
Description
Notes from observations, tasting etc at Plants For A Future and on field trips.
].

A yellow dye is obtained from the boiled flowers[
2
Title
Sturtevant's Edible Plants of the World.
Publication
 
Author
Hedrick. U. P.
Publisher
Dover Publications
Year
1972
ISBN
0-486-20459-6
Description
Lots of entries, quite a lot of information in most entries and references.
,
4
Title
A Modern Herbal.
Publication
 
Author
Grieve.
Publisher
Penguin
Year
1984
ISBN
0-14-046-440-9
Description
Not so modern (1930's?) but lots of information, mainly temperate plants.
,
46
Title
Dictionary of Economic Plants.
Publication
 
Author
Uphof. J. C. Th.
Publisher
Weinheim
Year
1959
ISBN
-
Description
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.
].

The seed contains 40-46% oil of which 50-55% is highly conjugated calendic acid and 28-30% is the
non-conjugated linoenic acid. The oil could have applications in the manufacture of paints and coatings, cosmetics and some industrial nylon products[
289
Title
The National Non-Food Crops Centre Crop Database
Publication
 
Author
 
Website
http://www.nnfcc.co.uk/crops/pd.cfm
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line information source, with information on over 100 species (as of 2006) of plants being investigated as bio-crops.
]. Yields of 0.38 tonnes per hectare have been achieved in Britain, and it is believed that this could be increased to 0.6 tonnes[
289
Title
The National Non-Food Crops Centre Crop Database
Publication
 
Author
 
Website
http://www.nnfcc.co.uk/crops/pd.cfm
Publisher
 
Year
0
ISBN
 
Description
An excellent on-line information source, with information on over 100 species (as of 2006) of plants being investigated as bio-crops.
].

An essential oil is obtained from the plant[
7
Title
Encyclopaedia of Medicinal Plants.
Publication
 
Author
Chiej. R.
Publisher
MacDonald
Year
1984
ISBN
0-356-10541-5
Description
Covers plants growing in Europe. Also gives other interesting information on the plants. Good photographs.
]. It is used rather sparingly, in view of the difficulty in obtaining it, in perfumes that have a rather sharp tang[
7
Title
Encyclopaedia of Medicinal Plants.
Publication
 
Author
Chiej. R.
Publisher
MacDonald
Year
1984
ISBN
0-356-10541-5
Description
Covers plants growing in Europe. Also gives other interesting information on the plants. Good photographs.
].

The flowers close when wet weather is likely to occur and they can therefore be used as a rough means of weather forecasting[
7
Title
Encyclopaedia of Medicinal Plants.
Publication
 
Author
Chiej. R.
Publisher
MacDonald
Year
1984
ISBN
0-356-10541-5
Description
Covers plants growing in Europe. Also gives other interesting information on the plants. Good photographs.
].

Propagation

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
Title
Growing from Seed. Volume 3.
Publication
 
Author
Bird. R. (Editor)
Publisher
Thompson and Morgan.
Year
1989
ISBN
-
Description
Very readable magazine with lots of information on propagation.
]. The plant often self-sows freely.
Cite as: Temperate Plants Database, Ken Fern. temperate.theferns.info. 2018-12-18. <temperate.theferns.info/plant/Calendula+officinalis>

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