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.
Leaves - raw or cooked. Used as a flavouring in summer drinks
A herb tea is made from the leaves
An essential oil is obtained from the whole plant. The plant is used as a strewing herb for repelling insects
. 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
The leaves and flowering stems are carminative, diaphoretic, diuretic, emmenagogue and stomachic
. 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
. The leaves are harvested as the plant comes into flower and can be dried for later use
The essential oil in the leaves is antiseptic, though it is toxic in large doses
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.
Practical Plants is currently lacking information on propagation instructions of Mentha diemenica. Help us fill in the blanks! Edit this page to add your knowledge.
We do not have much information on this species and do not know if it will be hardy in Britain, though judging by its native range it should succeed outdoors at least in the milder parts of the country. Plants tolerate temperatures down to at least -7°c in Australian gardens
, though this cannot be translated directly to British gardens due to our cooler summers and longer colder and wetter winters. The plants also tolerate occasional trampling
. The following notes are based on the general needs of the genus.
Succeeds in most soils and situations so long as the soil is not too dry. Prefers a slightly acid soil. Grows well in heavy clay soils. A sunny position is best for production of essential oils, but succeeds in partial shade.
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. 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
Problems, pests & diseases
Associations & Interactions
There are no interactions listed for Mentha diemenica. Do you know of an interaction that should be listed here? edit this page to add it.
Polycultures & Guilds
There are no polycultures listed which include Mentha diemenica.
This table shows all the data stored for this plant.
Material uses & Functions
Native Climate Zones
Adapted Climate Zones
Native Geographical Range
Root Zone Tendancy
? 1.01.11.21.31.4 Wrigley. J. W. and Fagg. M. Australian Native Plants. Collins. (Australia) ISBN 0-7322-0021-0 (1988-00-00)
? 2.02.12.22.3 Lassak. E. V. and McCarthy. T. Australian Medicinal Plants. ()
? 3.03.1 Phillips. R. & Foy. N. Herbs Pan Books Ltd. London. ISBN 0-330-30725-8 (1990-00-00)
? 4.04.14.2 Foster. S. & Duke. J. A. A Field Guide to Medicinal Plants. Eastern and Central N. America. Houghton Mifflin Co. ISBN 0395467225 (1990-00-00)
? 5.05.1 Bown. D. Encyclopaedia of Herbs and their Uses. Dorling Kindersley, London. ISBN 0-7513-020-31 (1995-00-00)
? F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956 Oxford University Press (1951-00-00)
? 7.07.1 Simons. New Vegetable Growers Handbook. Penguin ISBN 0-14-046-050-0 (1977-00-00)
? Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press ISBN 0-333-47494-5 (1992-00-00)
? Baines. C. Making a Wildlife Garden. ()
? Thomas. G. S. Perennial Garden Plants J. M. Dent & Sons, London. ISBN 0 460 86048 8 (1990-00-00)
? Carolin. R. & Tindale. M. Flora of the Sydney Region Reed. Australia. ISBN 0730104001 (1993-00-00)