Mentha satureioides
Native Pennyroyal
a perennial member of the Mentha genus in the family Labiatae.
Taxonomy and growth
Uses
Toxicity
Toxicity warning. The historical record reports a hazard for this plant. Do not use it to decide which parts are safe to eat or use medicinally.
This section contains historical Plants For A Future notes marked noncommercial.
Although no records of toxicity have been seen for this species, large quantities of some members of this genus, especially when taken in the form of the extracted essential oil, can cause abortions so some caution is advised.
Edible uses
This section contains historical Plants For A Future notes marked noncommercial.
Leaves - raw or cooked. Used as a flavouring in salads or cooked foods. A herb tea is made from the leaves.
- Product or use
- Condiment
- Product or use
- Tea
- Plant part
- Leaves
Medicinal uses
Historical medicinal uses. These records describe reported uses. They do not establish safety or effectiveness. Ask a qualified health professional before using any plant medicinally.
This section contains historical Plants For A Future notes marked noncommercial.
The leaves and flowering plant are alterative, antispasmodic, blood purifier, digestive, emmenagogue and tonic[2][3][8]. A tea made from the leaves has traditionally been used in the treatment of fevers, coughs, colds, headaches, digestive disorders, menstrual complaints and various minor ailments[2][6][8]. It can be used as a substitute for both pennyroyal (Mentha pulegium) and peppermint (Mentha x piperita)[8]. Like those species, it should not be prescribed for pregnant women since it can procure an abortion[8]. The leaves are harvested as the plant comes into flower and can be dried for later use[8]. The essential oil in the leaves is antiseptic, though it is toxic in large doses[6] and can cause abortions[2][3].
- Product or use
- Abortifacient
- Product or use
- Alterative
- Product or use
- Antiseptic
- Product or use
- Antispasmodic
- Product or use
- Blood purifier
- Product or use
- Carminative
- Product or use
- Digestive
- Product or use
- Emmenagogue
- Product or use
- Tonic
Material uses
This section contains historical Plants For A Future notes marked noncommercial.
An essential oil is obtained from the whole plant. It has a scent intermediate between pennyroyal and peppermint[8]. The plant is used as an insect repellent[3]. 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[10].
- Product or use
- Essential
- Product or use
- Repellent
- Product or use
- Strewing
Environment
- Range
- Australia - New South Wales, Queensland, Victoria.
- Habitat
- Banks of rivers and creeks, open forests and pastures, especially on shale[2].
- Light
- full sun
- Shade tolerance
- light shade
- Water
- moderate
- Hardiness
- Zone 6+
- Soil textures
- sandy, loamy, clay, heavy clay
- Soil pH
- acid, neutral, alkaline
- Tolerates Nutritionally Poor Soil
- No
- Drought
- intolerant
Propagation
This section contains historical Plants For A Future notes marked noncommercial.
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]. 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.
Cultivation
This section contains historical Plants For A Future notes marked noncommercial.
Succeeds in most soils and situations so long as the soil is not too dry[1][4][5]. Prefers a slightly acid soil[4]. Grows well in heavy clay soils. A sunny position is best for production of essential oils, but it also succeeds in partial shade. Plants are hardy to about -15°c[8]. Most mints have fairly aggressive spreading roots and, unless you have the space to let them roam, they need to be restrained by some means such as planting them in containers that are buried in the soil[K]. Hybridizes freely with other members of this genus. The whole plant has a mint-like aroma. The flowers are very attractive to bees and butterflies[9]. A good companion plant for growing near cabbages and tomatoes, helping to keep them free of insect pests. Members of this genus are rarely if ever troubled by browsing deer[7].
References
F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956 Oxford University Press 1951-00-00
Lassak. E. V. and McCarthy. T. Australian Medicinal Plants.
Ewart. A. J. Flora of Victoria.
Simons. New Vegetable Growers Handbook. Penguin 1977-00-00 ISBN 0-14-046-050-0
Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press 1992-00-00 ISBN 0-333-47494-5
Foster. S. & Duke. J. A. A Field Guide to Medicinal Plants. Eastern and Central N. America. Houghton Mifflin Co. 1990-00-00 ISBN 0395467225
Thomas. G. S. Perennial Garden Plants J. M. Dent & Sons, London. 1990-00-00 ISBN 0 460 86048 8
Bown. D. Encyclopaedia of Herbs and their Uses. Dorling Kindersley, London. 1995-00-00 ISBN 0-7513-020-31
Baines. C. Making a Wildlife Garden.
Phillips. R. & Foy. N. Herbs Pan Books Ltd. London. 1990-00-00 ISBN 0-330-30725-8