Mentha suaveolens
Round-Leaved Mint
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 as a potherb[8]. Used as a flavouring in salads or cooked foods[2]. The leaves have a similar flavour to spearmint, and are considered to be superior in flavour to that species but are also hairy, which makes them less suitable for garnishing[6]. A herb tea is made from the leaves[2].
- 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.
Round leafed mint, like many other members of this genus, is often used as a domestic herbal remedy, being valued especially for its antiseptic properties and its beneficial effect on the digestion. Like other members of the genus, it is best not used by pregnant women because large doses can cause an abortion. A tea made from the leaves of most mint species has traditionally been used in the treatment of fevers, headaches, digestive disorders and various minor ailments[4]. The leaves are harvested as the plant comes into flower and can be dried for later use[6]. The essential oil in the leaves is antiseptic, though it is toxic in large doses[4].
- Product or use
- Antiseptic
- Product or use
- Carminative
- Product or use
- Febrifuge
Material uses
This section contains historical Plants For A Future notes marked noncommercial.
An essential oil is obtained from the whole 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[7].
- Product or use
- Essential
- Product or use
- Repellent
- Product or use
- Strewing
Environment
- Range
- S. and W. Europe, north to the Netherlands and east into W. Asia.
- Habitat
- Damp ground that often dries out in summer, from sea level to 400 metres in Turkey[9].
- Light
- full sun
- Shade tolerance
- light shade
- Water
- moderate
- Hardiness
- Zone 4+
- 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.
A very easily grown plant, it succeeds in most soils and situations so long as the soil is not too dry[1][3]. Grows well in heavy clay soils. A sunny position is best for production of essential oils, but plants also succeed in partial shade. Often cultivated as a pot herb[8]. There are some named varieties[3]. The flowers have a sickly sweet smell[8]. A very invasive plant, spreading freely at the roots[3]. Unless you have the space to let it roam, it needs to be restrained by some means such as planting it in a container that is buried in the soil[K]. It is said to be a good companion for cabbages and tomatoes, its aromatic leaves repelling insect pests, though its aggressive root system also needs to be taken into account here. The whole plant has a mint-like aroma. The flowers are very attractive to bees and butterflies. Members of this genus are rarely if ever troubled by browsing deer[5]. Hybridizes freely with other members of this genus.
References
F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956 Oxford University Press 1951-00-00
Facciola. S. Cornucopia - A Source Book of Edible Plants. Kampong Publications 1990-00-00 ISBN 0-9628087-0-9
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
Phillips. R. & Foy. N. Herbs Pan Books Ltd. London. 1990-00-00 ISBN 0-330-30725-8
? Flora Europaea Cambridge University Press 1964-00-00
Davis. P. H. Flora of Turkey. Edinburgh University Press 1965-00-00