Glycyrrhiza glabra

RHS Plant Profile
liquorice

Other common names

licorice, Spanish juice plant, Spanish liquorice, sweetwood

Synonyms

Glycyrrhiza glandulifera

Shrubs

A woody-based perennial to 1.2m tall, with upright stems bearing sticky leaves to 20cm long, formed of numerous opposite pairs of leaflets. Pale blue to violet flowers are produced in loose, upright spikes in late summer. The roots, which are best harvested in the autumn, are the source of liquorice. An interesting plant for a wild garden or informal border

Position

Full sun

Soil Types

Chalk, Clay, Loam, Sand

Max Height

1-1.5 metres

Max Spread

0.5-1 metres

Size

Time to Maturity
2–5 years
Max Spread
0.5-1 metres
Max Height
1-1.5 metres

Growing Conditions

Chalk Clay Loam Sand
Moisture
Moist but well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun
Aspect
South–facing or West–facing
Exposure
Sheltered
Hardiness
H5

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Fabaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Bushy
Genus
Glycyrrhiza are herbaceous perennials with pinnate leaves and white, violet or pale yellow vetch-like flowers
Name Status
Correct
Plant Range
Mediterranean to S.W. Asia

How to Grow

Cultivation

Grow in deep, fertile, moist soil in full sun. Plants should be at least three years old before the roots are harvested

Propagation

Propagate by sowing seed in containers in a coldframe in spring or autumn. Divide roots, each with one or more growth buds, in early spring

Suggested planting locations and garden types

  • Cottage and informal garden
  • Flower borders and beds

Pruning

No pruning required

Pests

Generally pest-free

Diseases

Generally disease-free