Poncirus trifoliata
Most hardy of the citrus. Fruit is sour but edible. White fragrant flowers.
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| Common Name | hardy orange |
| Landscape Zone | LZ2 |
| Firewise Rating | MODERATELY Firewise (2) |
| Urban Use | High |
| Invasive | Potential |
| Native | No |
| Utility Use | Yes |
| Ladder Potential without Pruning | Yes |
| Cold Hardiness Zone | 5 |
| Heat Tolerance Zone | 9 |
| Sun Exposure | Full Sun |
| Soil pH | Adaptable |
| Tolerance to Poorly Drained Soils | Low |
| Salt Tolerance | No |
| Drought Resistance | Medium |
| Pest Resistance | High |
| Growth Rate | Medium |
| Plant Form | Oval |
| Plant Height Mature Size in feet | 15 |
| Plant Height Mature Size in meters | 4.5 |
| Trunk Size | Multi-stem < 6 |
| Bark | Thorny |
| Leaf Arrangement | Alternate |
| Leaf Persistance | Deciduous |
| Leaf Color | Green None |
| Leaf Type | Compound |
| Leaf Surface | Glabrous |
| Leaf Characteristics | Papery-thin |
