Forsythia x intermedia
Border Forsythia
| Family |
| Oleaceae |
| Genus |
| Forsythia |
| Species |
| x intermedia |
| Category |
| Woody |
| Type |
| Shrub (deciduous) |
| Pronunciation |
| USDA Hardiness Zone |
| 6 - 8 |
| Canadian Hardiness Zone |
| 5a - 7a |
| RHS Hardiness Zone |
| H5 - H7 |
| Temperature (°C) |
| -34 - (-7) |
| Temperature (°F) |
| -30 -20 |
| Height |
| 3 - 4 m |
| Spread |
| 4 m |
| Growth |
| Fast |
| Notable Specimens |
| The A.M. Cuddy Gardens, Strathroy, Ontario, Canada. |