Key Lime — Growing reference
| Scientific name | Citrus aurantiifolia |
|---|---|
| First harvest or flowering (days) | 1095–2190 |
| Measured from | Transplant |
| Plant spacing (cm) | 182.9–365.8 |
| Mature height (cm) | 182.9–457.2 |
| Mature spread (cm) | 182.9–365.8 |
| USDA hardiness zones | 10–11 |
| Light | Full sun |
| Water | Moderate |
| Sowing method | Transplant |
Growing directions
Key lime is a small, thorny tree distinct from the larger Persian lime (Citrus latifolia) — its fruit is smaller, more aromatic, more acidic, and nearly seedless at full yellow ripeness. It is self-fertile and bears prolifically in truly tropical conditions; the tree is damaged by any frost and requires zone 10–11 for outdoor culture, though it adapts well to large containers for zone 9 growers who can move it inside. Harvest fruit while still light green to yellow-green, before it turns fully yellow; yellow fruit is riper and less acid but also more perishable. Apply citrus fertilizer three times per year and ensure excellent drainage to prevent root rot.
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