Licorice — Growing reference
| Scientific name | Glycyrrhiza glabra |
|---|---|
| Seed germination (days) | 14–21 |
| Soil temperature for germination (°C) | 18.3–23.9 |
| First harvest or flowering (days) | 1095–1460 |
| Measured from | Seed |
| Plant spacing (cm) | 45.7–61 |
| Mature height (cm) | 91.4–152.4 |
| Mature spread (cm) | 45.7–76.2 |
| USDA hardiness zones | 6–11 |
| Light | Full sun |
| Water | Moderate |
| Sowing method | indoor-start |
Growing directions
Scarify seed coat lightly with sandpaper or soak overnight before sowing 1/4 in deep in warm starting mix; germination improves significantly with this treatment. Plant in deep, fertile, well-drained soil in full sun — licorice develops an extensive, deep root system and resents being moved. Roots are ready to harvest in the third or fourth autumn when they are at least pencil-thick, digging carefully to extract as much of the lateral root run as possible. The dried root is used medicinally as a demulcent and anti-inflammatory for digestive and respiratory conditions; note that excessive consumption raises blood pressure.
Source and local conditions
Typical planning ranges from OpenPlantDB (CC0). Cultivar, climate, season and growing method can change these values. Confirm the seed label and local guidance before planting.
Source & verification
OpenPlantDB · CC0