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Useful Temperate Plants

Mentha pulegium

L.

Lamiaceae


The Temperate Database is in the process of being updated, with new records being added and old ones being checked and brought up to date where necessary. This record has not yet been checked and updated.

+ Synonyms

Common Name: Pennyroyal

No Image.

General Information

Mentha pulegium is a Perennial up to 0.40 metres tall.
It has edible, medicinal and miscellaneous uses.

Known Hazards

In large quantities this plant, especially in the form of the extracted essential oil, can cause abortions so it should not be used by pregnant women[
165
Title
The Dictionary of Modern Herbalism.
Publication
 
Author
Mills. S. Y.
Publisher
 
Year
 
ISBN
 
Description
An excellent small herbal.
].

Botanical References

17
Title
Flora of the British Isles.
Publication
 
Author
Clapham, Tutin and Warburg.
Publisher
Cambridge University Press
Year
1962
ISBN
-
Description
A very comprehensive flora, the standard reference book but it has no pictures.
,
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

Centraland southern Europe, including Britain, Mediterranean region, Macaronesia.

Habitat

Moist meadows and sandy soils by streams etc[
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.
,
17
Title
Flora of the British Isles.
Publication
 
Author
Clapham, Tutin and Warburg.
Publisher
Cambridge University Press
Year
1962
ISBN
-
Description
A very comprehensive flora, the standard reference book but it has no pictures.
].

Properties

Edibility Rating *  *  *
Medicinal Rating *  *  *
HabitPerennial
Height0.40 m
PollinatorsBees
Cultivation StatusWild

Cultivation Details

Succeeds in most soils and situations so long as the soil is not too dry[
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.
]. Plants are very quickly diminished by dry conditions[
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.
]. Prefers a stiff moist soil that is slightly acid[
16
Title
New Vegetable Growers Handbook.
Publication
 
Author
Simons.
Publisher
Penguin
Year
1977
ISBN
0-14-046-050-0
Description
A good guide to growing vegetables in temperate areas, not entirely organic.
,
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.
,
37
Title
The Gardener's Assistant.
Publication
 
Author
Thompson. B.
Publisher
Blackie and Son.
Year
1878
ISBN
-
Description
Excellent general but extensive guide to gardening practices in the 19th century. A very good section on fruits and vegetables with many little known species.
,
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.
]. A sunny position is best for production of essential oils, but plants succeed in partial shade.
Pennyroyal is often grown in the herb garden and is also cultivated commercially as a medicinal plant[
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.
,
115
Title
The Useful Plants of Great Britain.
Publication
 
Author
Johnson. C. P.
Publisher
 
Year
 
ISBN
 
Description
Written about a hundred years ago, but still a very good guide to the useful plants of Britain.
]. There are two main forms of this species. One has weak prostrate stems and spreads by rooting where the stems touch the ground, it is only 10cm tall[
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 other is erect, does not spread so freely and grows about 30cm tall, thus making it easier to harvest[
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.
]. There is also at least one named form, called 'Dwarf' it is only a few centimetres tall[
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 whole plant a strong spearmint smell.
The flowers are very attractive to bees and butterflies[
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.
].
A good companion plant for cabbages and tomatoes[
20
Title
Companion Planting for Successful Gardening.
Publication
 
Author
Riotte. L.
Publisher
Garden Way, Vermont, USA.
Year
1978
ISBN
0-88266-064-0
Description
Fairly good.
], helping to repel cabbage root fly and other burrowing insects[
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.
].
Members of this genus are rarely if ever troubled by browsing deer[
233
Title
Perennial Garden Plants
Publication
 
Author
Thomas. G. S.
Publisher
J. M. Dent & Sons, London.
Year
1990
ISBN
0 460 86048 8
Description
A concise guide to a wide range of perennials. Lots of cultivation guides, very little on plant uses.
].

Edible Uses

Leaves - raw or cooked[
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.
,
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.
,
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.
]. Used as a flavouring in salads or cooked foods[
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.
]. A spearmint-like flavour, though rather coarser, it is not used very often in Britain[
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 herb tea is made from the fresh or dried leaves[
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.
]. For drying, it should be harvested as the plant comes into flower[
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.
].

Medicinal

Pennyroyal has been used for centuries in herbal medicine. Its main value is as a digestive tonic where it increases the secretion of digestive juices and relieves flatulence and colic[
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.
]. Pennyroyal also powerfully stimulates the uterine muscles and encourages menstruation, thus it should not be prescribed for pregnant women since it can procure abortions, this is especially the case if the essential oil is used[
238
Title
Encyclopaedia of Herbs and their Uses.
Publication
 
Author
Bown. D.
Publisher
Dorling Kindersley, London.
Year
1995
ISBN
0-7513-020-31
Description
A very well presented and informative book on herbs from around the globe. Plenty in it for both the casual reader and the serious student. Just one main quibble is the silly way of having two separate entries for each plant.
,
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.
].
The herb is antiseptic, antispasmodic, carminative, diaphoretic, emmenagogue, sedative and stimulant[
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.
,
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.
,
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.
]. A tea made from the leaves has traditionally been used in the treatment of fevers, headaches, minor respiratory infections, digestive disorders, menstrual complaints and various minor ailments[
222
Title
A Field Guide to Medicinal Plants. Eastern and Central N. America.
Publication
 
Author
Foster. S. & Duke. J. A.
Publisher
Houghton Mifflin Co.
Year
1990
ISBN
0395467225
Description
A concise book dealing with almost 500 species. A line drawing of each plant is included plus colour photographs of about 100 species. Very good as a field guide, it only gives brief details about the plants medicinal properties.
,
238
Title
Encyclopaedia of Herbs and their Uses.
Publication
 
Author
Bown. D.
Publisher
Dorling Kindersley, London.
Year
1995
ISBN
0-7513-020-31
Description
A very well presented and informative book on herbs from around the globe. Plenty in it for both the casual reader and the serious student. Just one main quibble is the silly way of having two separate entries for each plant.
,
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 occasionally used as a treatment for intestinal worms[
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.
]. Externally, an infusion is used to treat itchiness and formication, inflamed skin disorders such as eczema and rheumatic conditions such as gout[
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.
]. The leaves are harvested in the summer as the plant comes into flower and are dried for later use[
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 essential oil in the leaves is antiseptic, though it is toxic in large doses[
222
Title
A Field Guide to Medicinal Plants. Eastern and Central N. America.
Publication
 
Author
Foster. S. & Duke. J. A.
Publisher
Houghton Mifflin Co.
Year
1990
ISBN
0395467225
Description
A concise book dealing with almost 500 species. A line drawing of each plant is included plus colour photographs of about 100 species. Very good as a field guide, it only gives brief details about the plants medicinal properties.
].

Agroforestry Uses:

The plant has a low spreading habit and can be used as a ground cover, though it is somewhat sparse in the winter and can be invaded by the more aggressive weeds[
K
Title
Plants for a Future
Author
Ken Fern
Description
Notes from observations, tasting etc at Plants For A Future and on field trips.
].

Other Uses

An essential oil is obtained from the whole plant, used in soap making[
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.
,
61
Title
A Dictionary of Plants Used by Man.
Publication
 
Author
Usher. G.
Publisher
Constable
Year
1974
ISBN
0094579202
Description
Forget the sexist title, this is one of the best books on the subject. Lists a very extensive range of useful plants from around the world with very brief details of the uses. Not for the casual reader.
] and as a cleanser for fabrics[
169
Title
A Weavers Garden
Publication
 
Author
Buchanan. R.
Publisher
McGraw-Hill Contemporary
Year
1987
ISBN
0934026289
Description
Covers all aspects of growing your own clothes, from fibre plants to dyes.
]. The essential oil is an effective inhibitor of hydrochloric acid corrosion when coated over steel[
1091
Title
Effect of Athamanta sicula oil on inhibition of mild steel corrosion in 1M HCl
Publication
Der Pharma Chemica · February 2015, 7(2):103-111
Author
A. Bouyanzer et al
Website
http://derpharmachemica.com/archive.html
Publisher
 
Year
2015
ISBN
0975-413X
Description
Research paper on the value of plant extracts, especially Athamanta sicula, in protecting steel from acid corrosion.
].
A yield of 14kg of oil per hectare is considered good[
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 growing or dried plant repels fleas, ants, moths, mice etc[
18
Title
Companion Plants.
Publication
 
Author
Philbrick H. and Gregg R. B.
Publisher
Watkins
Year
1979
ISBN
-
Description
Details of beneficial and antagonistic relationships between neighbouring plants.
,
20
Title
Companion Planting for Successful Gardening.
Publication
 
Author
Riotte. L.
Publisher
Garden Way, Vermont, USA.
Year
1978
ISBN
0-88266-064-0
Description
Fairly good.
,
148
Title
Herbs of Greece.
Publication
 
Author
Niebuhr. A. D.
Publisher
Herb Society of America.
Year
1970
ISBN
-
Description
A pleasant little book about Greek herbs.
,
169
Title
A Weavers Garden
Publication
 
Author
Buchanan. R.
Publisher
McGraw-Hill Contemporary
Year
1987
ISBN
0934026289
Description
Covers all aspects of growing your own clothes, from fibre plants to dyes.
,
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.
,
238
Title
Encyclopaedia of Herbs and their Uses.
Publication
 
Author
Bown. D.
Publisher
Dorling Kindersley, London.
Year
1995
ISBN
0-7513-020-31
Description
A very well presented and informative book on herbs from around the globe. Plenty in it for both the casual reader and the serious student. Just one main quibble is the silly way of having two separate entries for each plant.
]. Rats and mice intensely dislike the smell of mint. The plant was therefore used in homes as a strewing herb and has also been spread in granaries to keep the rodents off the grain[
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.
]. A strong infusion applied to the face will keep gnats away in the summer[
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.
].
The aromatic leaves are used as an ingredient of pot-pourri[
238
Title
Encyclopaedia of Herbs and their Uses.
Publication
 
Author
Bown. D.
Publisher
Dorling Kindersley, London.
Year
1995
ISBN
0-7513-020-31
Description
A very well presented and informative book on herbs from around the globe. Plenty in it for both the casual reader and the serious student. Just one main quibble is the silly way of having two separate entries for each plant.
].

Propagation

Seed - sow spring in a cold frame. Germination is usually fairly quick. Prick out the seedlings into individual pots when they are large enough to handle and plant them out in the summer. Mentha species are very prone to hybridisation and so the seed cannot be relied on to breed true. Even without hybridisation, seedlings will not be uniform and so the content of medicinal oils etc will vary. When growing plants with a particular aroma it is best to propagate them by division[
K
Title
Plants for a Future
Author
Ken Fern
Description
Notes from observations, tasting etc at Plants For A Future and on field trips.
].
Division can be easily carried out at almost any time of the year, though it is probably best done in the spring or autumn to allow the plant to establish more quickly. Virtually any part of the root is capable of growing into a new plant. Larger divisions can be planted out direct into their permanent positions. However, for maximum increase it is possible to divide the roots up into sections no more than 3cm long and pot these up in light shade in a cold frame. They will quickly become established and can be planted out in the summer.
Cite as: Temperate Plants Database, Ken Fern. temperate.theferns.info. 2018-10-16. <temperate.theferns.info/plant/Mentha+pulegium>

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