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Toxic parts

In large quantities this plant, especially in the form of the extracted essential oil, can be toxic if taken internally[1]. Skin contact with the pure essential oil can cause dermatitis[1]

Edible uses


The leaves have a very strong mint-like aroma and taste[2], they can be brewed into a refreshing tea that promotes good digestion, or they can be used as a culinary flavouring[3][4]. An essential oil from the plant is used by the food industry as a flavouring in beverages, ice cream, baked goods etc[3].

Unknown part


Material uses

The essential oil is used as an ingredient in commercial insect repellents and cleaning products[4]. The plant is used as an insect repellent[5][2]. When rubbed on the body it is said to repel ticks[6].

Unknown part

Medicinal uses(Warning!)

American pennyroyal has a long history of medicinal use by various native North American Indian tribes and has become a traditional household remedy in North America[4]. It is used mainly in the treatment of digestive disorders, colds, whooping cough, painful menstruation and as an aid in childbirth[4]. A tea made from the leaves or flowering stems is carminative, rubefacient, stimulant[7][8][2]. It is used to treat colds because it promotes perspiration[6]. A tea with brewers yeast can induce an abortion[9]. The plants are harvested when flowering and can be used fresh or dried[9][4]. The essential oil is distilled from the plants when they are in flower and used medicinally in the same ways as the leaves. Caution is advised since the pure essential oil is very toxic and ingestion can be lethal whilst skin contact can cause dermatitis[1][4].


Ecosystem niche/layer

Ecological Functions

Nothing listed.


Nothing listed.


Nothing listed.


Seed - sow in situ in spring or autumn[5].

Practical Plants is currently lacking information on propagation instructions of Hedeoma pulegioides. Help us fill in the blanks! Edit this page to add your knowledge.


Prefers a sunny position in a well-drained acidic soil of low to moderate fertility[5]. Another report says that it prefers a rich sandy soil in sun or partial shade[4]. The plants neat habit and aromatic foliage make it a good candidate for growing in containers or planting near seats[4].


Problems, pests & diseases

Associations & Interactions

There are no interactions listed for Hedeoma pulegioides. 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 Hedeoma pulegioides.




None listed.


None listed.

Full Data

This table shows all the data stored for this plant.

Binomial name
Hedeoma pulegioides
Imported References
Edible uses
Medicinal uses
Material uses & Functions
Edible uses
None listed.
Material uses
None listed.
Medicinal uses
None listed.
Functions & Nature
Provides forage for
Provides shelter for
Hardiness Zone
Heat Zone
full sun
light shade
Soil PH
Soil Texture
Soil Water Retention
Environmental Tolerances
    Native Climate Zones
    None listed.
    Adapted Climate Zones
    None listed.
    Native Geographical Range
    None listed.
    Native Environment
    None listed.
    Ecosystem Niche
    None listed.
    Root Zone Tendancy
    None listed.
    Deciduous or Evergreen
    Herbaceous or Woody
    Life Cycle
    Growth Rate
    Mature Size
    Flower Colour
    Flower Type


    1. ? Foster. S. & Duke. J. A. A Field Guide to Medicinal Plants. Eastern and Central N. America. Houghton Mifflin Co. ISBN 0395467225 (1990-00-00)
    2. ? Hill. A. F. Economic Botany. The Maple Press (1952-00-00)
    3. ? Facciola. S. Cornucopia - A Source Book of Edible Plants. Kampong Publications ISBN 0-9628087-0-9 (1990-00-00)
    4. ? Bown. D. Encyclopaedia of Herbs and their Uses. Dorling Kindersley, London. ISBN 0-7513-020-31 (1995-00-00)
    5. ? Buchanan. R. A Weavers Garden. ()
    6. ? Coffey. T. The History and Folklore of North American Wild Flowers. Facts on File. ISBN 0-8160-2624-6 (1993-00-00)
    7. ? 7.07.1 Uphof. J. C. Th. Dictionary of Economic Plants. Weinheim (1959-00-00)
    8. ? 8.08.1 Usher. G. A Dictionary of Plants Used by Man. Constable ISBN 0094579202 (1974-00-00)
    9. ? Weiner. M. A. Earth Medicine, Earth Food. Ballantine Books ISBN 0-449-90589-6 (1980-00-00)
    10. ? Fernald. M. L. Gray's Manual of Botany. American Book Co. (1950-00-00)

    Facts about "Hedeoma pulegioides"RDF feed
    Article is incompleteYes +
    Article requires citationsNo +
    Article requires cleanupYes +
    Belongs to familyLabiatae +
    Belongs to genusHedeoma +
    Has binomial nameHedeoma pulegioides +
    Has common nameAmerican Pennyroyal +
    Has drought toleranceIntolerant +
    Has edible partUnknown part + and Leaves +
    Has edible useCondiment + and Unknown use +
    Has flowers of typeHermaphrodite +
    Has hardiness zone6 +
    Has lifecycle typeAnnual +
    Has material partUnknown part +
    Has material useEssential + and Repellent +
    Has mature height0.3 +
    Has mature width0.2 +
    Has medicinal partUnknown part +
    Has medicinal useAbortifacient +, Birthing aid +, Carminative +, Diaphoretic +, Rubefacient + and Stimulant +
    Has search namehedeoma pulegioides + and american pennyroyal +
    Has shade toleranceLight shade +
    Has soil ph preferenceVery acid +, Acid + and Neutral +
    Has soil texture preferenceSandy +, Loamy + and Clay +
    Has soil water retention preferenceWell drained +
    Has sun preferenceFull sun +
    Has taxonomic rankSpecies +
    Has taxonomy nameHedeoma pulegioides +
    Has water requirementsmoderate +
    Is taxonomy typeSpecies +
    PFAF cultivation notes migratedNo +
    PFAF edible use notes migratedNo +
    PFAF material use notes migratedNo +
    PFAF medicinal use notes migratedNo +
    PFAF propagation notes migratedNo +
    PFAF toxicity notes migratedNo +
    Tolerates nutritionally poor soilNo +
    Uses mature size measurement unitMeters +
    Has subobjectThis property is a special property in this wiki.Hedeoma pulegioides +, Hedeoma pulegioides +, Hedeoma pulegioides +, Hedeoma pulegioides +, Hedeoma pulegioides +, Hedeoma pulegioides +, Hedeoma pulegioides +, Hedeoma pulegioides +, Hedeoma pulegioides + and Hedeoma pulegioides +