Guava — Growing reference
| Scientific name | Psidium guajava |
|---|---|
| Seed germination (days) | 14–28 |
| Soil temperature for germination (°C) | 21.1–29.4 |
| First harvest or flowering (days) | 730–1095 |
| Measured from | Transplant |
| Plant spacing (cm) | 304.8–457.2 |
| Mature height (cm) | 243.8–609.6 |
| Mature spread (cm) | 243.8–457.2 |
| USDA hardiness zones | 9–11 |
| Light | Full sun |
| Water | Moderate |
| Sowing method | Transplant |
Growing directions
Plant in well-drained, fertile soil in full sun; guava tolerates a wide range of soil types including sand and clay but performs poorly with standing water. Young trees are frost-sensitive — provide frost cloth when temperatures threaten to drop below 28°F; mature trees can survive brief dips to 24°F but may lose production for a season. Prune after each fruiting flush to control size and encourage new wood, which bears the heaviest crop; a light annual fertilization with a balanced citrus-type fertilizer maintains vigor. Harvest fruit when the skin transitions from bright green to pale yellow-green and the aroma becomes noticeable — guavas ripen rapidly off the tree in 2–5 days.
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