Cultivated Licorice (Glycyrrhiza glabra) – Benefits, Growing Guide & Care | ePlant AI
Cultivated Licorice (Glycyrrhiza glabra)
Cultivated Licorice (Glycyrrhiza glabra) is a herbaceous perennial known for its medicinal roots, producing pale blue to violet flowers and compound leaves.
Glycyrrhiza glabra, commonly known as cultivated licorice, is a perennial herbaceous legume with a long history of human use, primarily for its sweet-tasting root. This plant belongs to the Fabaceae family, which also includes peas and beans. Its significance stems from its widespread cultivation and the extraction of glycyrrhizin, the compound responsible for its characteristic sweetness and a key ingredient in various applications.
Physically, Glycyrrhiza glabra typically grows to a height of about 1 to 1.5 meters, though it can occasionally reach up to 2 meters. It possesses a robust, creeping rhizomatous root system from which erect, somewhat woody stems emerge. The leaves are pinnately compound, meaning they are arranged along a central stalk, with typically 9 to 17 ovate to oblong leaflets that are sticky and glandular, especially when young. The plant produces attractive, pale violet to bluish pea-like flowers that are borne in dense, erect racemes at the tips of the stems during the summer months. Following flowering, small, flattened, oblong pods develop, each containing several small, hard, kidney-shaped seeds. The bark of the root is typically yellowish-brown to reddish-brown.
The native distribution of Glycyrrhiza glabra is primarily across parts of Southern Europe and Asia, extending into the Middle East. It thrives in a variety of habitats, often found in open, sunny locations, including meadows, riverbanks, and disturbed soils. For successful cultivation, Glycyrrhiza glabra prefers well-drained soils and full sun exposure. It is relatively drought-tolerant once established but benefits from consistent moisture, especially during its early growth stages. While it can be grown in temperate climates, it performs best in regions with warm summers.
The most notable importance of Glycyrrhiza glabra lies in its agricultural and medicinal applications. The roots are harvested and dried for commercial use. The primary compound extracted is glycyrrhizin, which is significantly sweeter than sucrose and possesses a unique flavor profile. This has led to its extensive use as a flavoring agent in confectionery, beverages, and tobacco products. Medicinally, licorice root has a long tradition of use in herbal remedies for various ailments, particularly those related to the respiratory and digestive systems, due to its expectorant and anti-inflammatory properties. Scientific research has explored its potential benefits, though it is crucial to consult with healthcare professionals for any medicinal use.
An interesting characteristic of Glycyrrhiza glabra is its ability to fix atmospheric nitrogen through a symbiotic relationship with soil bacteria in its root nodules, a common trait among legumes that enriches the soil. This nitrogen-fixing capability contributes to its ecological role in its native habitats and can be beneficial in agricultural settings. The plant's persistent rhizomatous growth also helps to stabilize soil, preventing erosion in its natural environment.
Prefers at least 6-8 hours of direct sunlight daily for optimal growth and flowering.
Water
Moderate
Keep soil consistently moist but not waterlogged. Allow top 2-3 cm to dry between waterings.
Soil
Well-drained
Temperature
Moderate
Thrives in temperatures between 15-25°C. Can tolerate cooler conditions but may go dormant.
Habitat
Outdoor
Fertilizer
Low
Light feeding in spring with a balanced fertilizer is sufficient. Avoid over-fertilizing.
Plant Overview
Plant Type
Herb
Plant Category
Medicinal
Plant Place Type
Garden, Pot
Plant Environment
Outdoor
Lifespan
Perennial
Plant Height
0.5-1.5 m
Spread
0.3-1 m
Growth Rate
Moderate
Dormancy
Yes
Leaf Color
Green
Leaf Type
Compound
Flower Size
1-1.2 cm
Optimal Sunlight Lux
60000
Image Gallery
Flowering & Fruiting Cycles
Monthly activity intensity for bloom and fruit across both hemispheres.
Northern hemisphere
Flowering & fruiting calendar
Peak bloom · JulPeak fruit · Sep
FloweringFruiting
Southern hemisphere
Flowering & fruiting calendar
Peak bloom · JunPeak fruit · Aug
FloweringFruiting
Synonyms
Glycyrrhiza alalensis X.Y.Li
Glycyrrhiza alaschanica Grankina
Glycyrrhiza brachycarpa Boiss.
Glycyrrhiza glandulifera Waldst. & Kit.
Glycyrrhiza hirsuta L.
Glycyrrhiza laevis Pall.
Glycyrrhiza michajloviana Grankina & E.V.Kuzmin
Glycyrrhiza nadezhinae Grankina
Glycyrrhiza officinalis Lepech.
Glycyrrhiza pallida Boiss. & Noë
Glycyrrhiza violacea Boiss.
Glycyrrhiza vulgaris Gueldenst. ex Ledeb.
Liquiritia officinalis Moench
Liquiritia officinarum Medik.
Taxonomy
kingdomPlantae
divisionTracheophyta
classMagnoliopsida
orderFabales
familyFabaceae
genusGlycyrrhiza
speciesGlycyrrhiza glabra
Toxicity
Toxic for humans
No
Rating: 0/5
Toxic for pets
No
Rating: 0/5
Edible
Yes
The roots are edible and widely used. Other parts of the plant are not typically consumed and may cause mild irritation if ingested in large quantities.
Additional Care Tips
Cultivated licorice prefers consistently moist soil but dislikes waterlogging. Water deeply when the top 2-3 cm of soil feels dry. Reduce watering slightly during cooler months or dormancy to prevent root rot. Ensure good drainage to maintain healthy root systems.
Prune in late winter or early spring before new growth begins. Remove any dead, damaged, or crossing stems. You can also cut back the plant significantly to encourage bushier growth and manage its size. This stimulates vigorous new shoots from the base.
Propagate by division of roots in early spring. Carefully separate mature rhizomes, ensuring each piece has at least one viable bud. Alternatively, seeds can be sown indoors in spring, but they may take longer to establish. Vegetative propagation is generally more reliable.
Repot established plants every 2-3 years, or when they become root-bound. Choose a larger container with ample drainage holes. Use a well-draining potting mix. The best time to repot is in early spring before active growth commences.
FAQs
How tall does Cultivated Licorice grow?
Cultivated Licorice typically grows to a height of 1 to 1.5 meters.
What kind of soil does Glycyrrhiza glabra prefer?
It prefers well-drained, fertile soil, and can tolerate a range of soil types.
Does Cultivated Licorice need full sun?
Yes, Glycyrrhiza glabra thrives in full sun conditions for optimal growth and root development.
Is Cultivated Licorice invasive?
Yes, Cultivated Licorice can spread aggressively via its rhizomes and may require containment.
When is the best time to harvest licorice root?
The roots are typically harvested in the fall after the plant has finished its growing season.