Climate matters. This page is a practical baseline. Confirm cultivar, local frost/heat conditions, mature size and regional restrictions before planting.
Citron — Growing reference
| Scientific name | Citrus medica |
|---|---|
| Seed germination (days) | 21–60 |
| Soil temperature for germination (°C) | 21.1–29.4 |
| First harvest or flowering (days) | 730–1460 |
| Measured from | Transplant |
| Plant spacing (cm) | 243.8–426.7 |
| Mature height (cm) | 243.8–457.2 |
| Mature spread (cm) | 243.8–426.7 |
| USDA hardiness zones | 9–11 |
| Light | Full sun |
| Water | Moderate |
| Sowing method | Transplant |
Growing directions
Citron is an ancient citrus grown mainly for its thick, fragrant rind, which is candied or used in preserves. It is among the most frost-tender citrus, so grow it in full sun in the warmest possible spot or in a container to move under cover. Provide rich, well-drained soil and steady moisture, feeding regularly during growth. Prune to remove the plant's stout thorns and dead wood, and harvest the large fruit when fully colored.
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