We depend on donations from users of our database of over 8000 edible and useful plants to keep making it available free of charge and to further extend and improve it. In recent months donations are down, and we are spending more than we receive. Please give what you can to keep PFAF properly funded. More >>>

Follow Us:

 

Glycyrrhiza glabra - L.

Common Name Liquorice, Cultivated licorice
Family Fabaceae or Leguminosae
USDA hardiness 7-10
Known Hazards A gross overdose of the root can cause oedema, high blood pressure and congestive heart failure[9, 65]. Do not use during premenstrual syndrome as water retention and bloating occur. If pregnant or have liver cirrhosis use with caution. Avoid using for more than 6 weeks. Excessive quantities may cause headache, sluggishness and potassium depletion [301].
Habitats Dry open places[50], especially in sandy places near the sea[132].
Range Europe - Mediterranean.
Edibility Rating    (4 of 5)
Other Uses    (4 of 5)
Weed Potential No
Medicinal Rating    (4 of 5)
Care (info)
Frost Hardy Moist Soil Semi-shade Full sun
Glycyrrhiza glabra Liquorice, Cultivated licorice


http://commons.wikimedia.org/wiki/File:Koeh-207.jpg
Glycyrrhiza glabra Liquorice, Cultivated licorice
http://en.wikipedia.org/wiki/User:Chameleon

 

Translate this page:

Summary


Physical Characteristics

 icon of manicon of flower
Glycyrrhiza glabra is a PERENNIAL growing to 1.2 m (4ft) by 1 m (3ft 3in).
See above for USDA hardiness. It is hardy to UK zone 8. It is in flower from June to July. The species is hermaphrodite (has both male and female organs) and is pollinated by Insects.
It can fix Nitrogen.
Suitable for: light (sandy) and medium (loamy) soils. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist soil. The plant can tolerates strong winds but not maritime exposure.

UK Hardiness Map US Hardiness Map

Synonyms

Glycyrrhiza glandulifera. Glycyrrhiza hirsuta. Glycyrrhiza pallida. Glycyrrhiza violacea.

Habitats

 Cultivated Beds;

Edible Uses

Edible Parts: Root
Edible Uses: Sweetener  Tea

Root - raw or used as a flavouring. The source of liquorice powder that is extracted and used in sweets, baked goods, ice cream, soft drinks etc[7, 34, 100, 183], it is also used medicinally. A sweet and delicious flavour, but the root is very fibrous[K]. The root contains glycyrrhizin, a substance that is 50 times sweeter than sucrose[171, 183, 238]. The dried root is often used for chewing, it is excellent for teething children and also as a tooth cleaner[7, 34]. A tea made from the roots is an excellent thirst quencher[21]. The powdered root is also used as a sweetener in other herb teas[183]. The leaves are used as a tea substitute in Mongolia[183].

References   More on Edible Uses

Medicinal Uses

Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.
Alterative  Antiinflammatory  Antispasmodic  Demulcent  Diuretic  Eczema  Emollient  Expectorant  
Laxative  Miscellany  Pectoral  Tonic  Urinary

Liquorice his one of the most commonly used herbs in Western herbal medicine and has a very long history of use, both as a medicine and also as a flavouring to disguise the unpleasant flavour of other medications[4]. It is a very sweet, moist, soothing herb that detoxifies and protects the liver[238] and is also powerfully anti-inflammatory, being used in conditions as varied as arthritis and mouth ulcers[254]. The root is alterative, antispasmodic, demulcent, diuretic, emollient, expectorant, laxative, moderately pectoral and tonic[4, 9, 21, 46, 165, 178]. The root has also been shown to have a hormonal effect similar to the ovarian hormone[7]. Liquorice root is much used in cough medicines and also in the treatment of catarrhal infections of the urinary tract[4]. It is taken internally in the treatment of Addison's disease, asthma, bronchitis, coughs, peptic ulcer, arthritis, allergic complaints and following steroidal therapy[238]. It should be used in moderation and should not be prescribed for pregnant women or people with high blood pressure, kidney disease or taking digoxin-based medication[238]. Prolonged usage raises the blood pressure and causes water retention[7, 238]. See also the notes above on toxicity. Externally, the root is used in the treatment of herpes, eczema and shingles[238]. The root is harvested in the autumn when 3 - 4 years old and is dried for later use[4, 238]. The German Commission E Monographs, a therapeutic guide to herbal medicine, approve Glycyrrhiza glabra for coughs/bronchitis, gastritis (see [302] for critics of commission E).

References   More on Medicinal Uses

Now available: PLANTS FOR YOUR FOOD FOREST: 500 Plants for Temperate Food Forests and Permaculture Gardens.

An important new book from PFAF. It focuses on the attributes of plants suitable for food forests, what each can contribute to a food forest ecosystem, including carbon sequestration, and the kinds of foods they yield. The book suggests that community and small-scale food forests can provide a real alternative to intensive industrialised agriculture, and help to combat the many inter-related environmental crises that threaten the very future of life on Earth.

Read More

FOOD FOREST PLANTS

Other Uses

Fibre  Miscellany

The plant yields a substance that is used for etching steel sections in photomicrographic work[171]. Extracts from the root are used as a foaming agent in beers and fire extinguishers[238]. A fibre obtained from the roots is used for insulation, wallboard, boxboard etc[4, 171]. The fibres can be used after the medicinal and flavouring constituents of the root have been removed[4]. A dynamic accumulator gathering minerals or nutrients from the soil and storing them in a more bioavailable form - used as fertilizer or to improve mulch.

Special Uses

Dynamic accumulator  Food Forest  Nitrogen Fixer  Scented Plants

References   More on Other Uses

Cultivation details

Requires a deep well cultivated fertile moisture-retentive soil for good root production[200]. Prefers a sandy soil with abundant moisture and does not flourish in clay[4]. Slightly alkaline conditions produce the best plants[238]. The plant thrives in a maritime climate[7]. Plants are hardy to about -15°c[200]. Liquorice is often cultivated for its edible root which is widely used in medicine and as a flavouring. There are some named varieties[183]. The ssp. glandulifera grows in Russia and produces adventitious roots up to 10 cm thick[142]. Yields of 10 - 12 tonnes per hectare were considered good in the early 20th century, this only being attained in the fourth year of growth[4]. Unless seed is required, the plant is usually prevented from flowering so that it puts more energy into producing good quality roots[238]. The bruised root has a characteristic sweet pungent smell[245]. Plants are slow to settle in and do not produce much growth in their first two years after being moved[4]. The young growth is also very susceptible to damage by slugs and so the plant will require some protection for its first few years[K]. A fairly deep-rooting plant, the roots are up to 120cm long[4]. It can be difficult to eradicate once it is established[238]. This species has a symbiotic relationship with certain soil bacteria, these bacteria form nodules on the roots and fix atmospheric nitrogen. Some of this nitrogen is utilized by the growing plant but some can also be used by other plants growing nearby[200]. The plant is heat tolerant in zones 12 through 10. (Plant Hardiness Zones show how well plants withstand cold winter temperatures. Plant Heat Zones show when plants would start suffering from the heat. The Plant Heat Zone map is based on the number of "heat days" experienced in a given area where the temperature climbs to over 86 degrees F (30°C). At this temperature, many plants begin to suffer physiological damage. Heat Zones range from 1 (no heat days) to 12 (210 or more heat days). For example Heat Zone. 11-1 indicates that the plant is heat tolerant in zones 11 through 1.) For polyculture design as well as the above-ground architecture (form - tree, shrub etc. and size shown above) information on the habit and root pattern is also useful and given here if available. The plant growth habit is a runner spreading indefinitely by rhizomes or stolons [1-2]. The root pattern is stoloniferous rooting from creeping stems above the ground [1-2].

References   Carbon Farming Information and Carbon Sequestration Information

Temperature Converter

Type a value in the Celsius field to convert the value to Fahrenheit:

Fahrenheit:

image

The PFAF Bookshop

Plants For A Future have a number of books available in paperback and digital form. Book titles include Edible Plants, Edible Perennials, Edible Trees, and Woodland Gardening. Our new book to be released soon is Edible Shrubs.

Shop Now

Propagation

Pre-soak the seed for 24 hours in warm water and then sow spring or autumn in a greenhouse[200]. Prick out the seedlings into individual pots when they are large enough to handle, and grow them on for their first winter in a greenhouse. Plant out in late spring or early summer when in active growth. Plants are rather slow to grow from seed[238]. Division of the root in spring or autumn. Each division must have at least one growth bud. Autumn divisions can either be replanted immediately or stored in clamps until the spring and then be planted out[200]. It is best to pt up the smaller divisions and grow them on in a cold frame until they are established before planting them out in the spring or summer.

Other Names

If available other names are mentioned here

Native Plant Search

Search over 900 plants ideal for food forests and permaculture gardens. Filter to search native plants to your area. The plants selected are the plants in our book 'Plants For Your Food Forest: 500 Plants for Temperate Food Forests and Permaculture Gardens, as well as plants chosen for our forthcoming related books for Tropical/Hot Wet Climates and Mediterranean/Hot Dry Climates. Native Plant Search

Found In

Countries where the plant has been found are listed here if the information is available

Weed Potential

Right plant wrong place. We are currently updating this section. Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.

Conservation Status

IUCN Red List of Threatened Plants Status :

Related Plants
Latin NameCommon NameHabitHeightHardinessGrowthSoilShadeMoistureEdibleMedicinalOther
Glycyrrhiza aspera Perennial0.3 0-0  LMSNM103
Glycyrrhiza echinataWild Liquorice, Chinese licoricePerennial1.0 7-10  LMSNM433
Glycyrrhiza lepidotaAmerican LiquoricePerennial1.0 3-8  LMSNM433
Glycyrrhiza malensis Perennial0.0 0-0  LMSNM203
Glycyrrhiza uralensisGan CaoPerennial0.6 5-9  LMHSNM343
Polypodium glycyrrhizaLicorice FernFern0.5 6-9  LMHSNM12 

Growth: S = slow M = medium F = fast. Soil: L = light (sandy) M = medium H = heavy (clay). pH: A = acid N = neutral B = basic (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = wet Wa = water.

 

Print Friendly and PDF

Expert comment

Author

L.

Botanical References

50200

Links / References

For a list of references used on this page please go here

Readers comment

   Tue Jan 24 2006

Paradox... Physical Characteristics: The plant can tolerates strong winds but not maritime exposure Cultivation details: The plant thrives in a maritime climate[7].

Md.Hemayet Hossain   Tue Aug 8 2006

This page described this plant more specificly than that of other page . Thank you. Moreover I add the follwing information in briefs that will help new learner to know the therapeutic effect& Safety information about this plant more quickly.Thank's a lot. Therapeutic Actions and Indications: Acts on the endocrine system and the liver as an antihepatotoxic effective in treating hepatitis and cirrhosis. Licorice is also an expectorant and antiinflammatory, useful in cough and bronchitis. Safety Information: Not for prolonged use except under the supervision of a qualified health practitioner. Prolonged use may cause hypertension, edema, headache, vertigo and potassium depletion. Not for use by persons with hypertension, hypo-kalemia, edema, cirrhosis of the liver and cholestatic liver disorders, and diabetes. Not to be used during pregnancy.

Add a comment

If you have important information about this plant that may help other users please add a comment or link below. Only comments or links that are felt to be directly relevant to a plant will be included. If you think a comment/link or information contained on this page is inaccurate or misleading we would welcome your feedback at [email protected]. If you have questions about a plant please use the Forum on this website as we do not have the resources to answer questions ourselves.

* Please note: the comments by website users are not necessarily those held by PFAF and may give misleading or inaccurate information.

To leave a comment please Register or login here All comments need to be approved so will not appear immediately.

Subject : Glycyrrhiza glabra  
© 2010, Plants For A Future. Plants For A Future is a charitable company limited by guarantee, registered in England and Wales. Charity No. 1057719, Company No. 3204567.