Rhododendron orthocladum
| Family |
| Ericaceae |
| Genus |
| Rhododendron |
| Species |
| orthocladum |
| Category |
| Woody |
| Type |
| Shrub (evergreen) |
| USDA Hardiness Zone |
| 6 |
| Canadian Hardiness Zone |
| H6 - H7 |
| RHS Hardiness Zone |
| 5a - 6a |
| Temperature (°C) |
| -23 - (-18) |
| Temperature (°F) |
| -10 - 0 |
| Height |
| Up to 1.3 m |
| Spread |
| 1.5 m |
| General Description |
| Rhododendron orthocladum is an erect evergreen shrub with many branches whose tips bear small, yellow-green leaves. |
| Cultivation |
| Grow in moist, well-drained, loose, acidic, humusy soil. |
| Growth |
| Slow |
| Leaf Description |
| Narrowly elliptic to lanceolate, 8 - 16 mm, yellow-brown to fawn underneath, crowded at the ends of branches in false whorls. |
| Flower Description |
| Petals are funnel-shaped, lavender-blue to purple or white. |
| Notable Specimens |
| RHS Garden Rosemoor, North Devon, England. |