R. 'John Tremayne'
Rhododendron Hybrid
| Hybridized By | Tremayne, J. |
| Seed Parent | R. arboreum ssp arboreum |
| Pollen Parent | R. griffithianum |
| Introduced | 1920 |
| 10 Year Height | ? |
| Bloom Time | ? |
| Flower | campanulate |
| Flower Color | ? |
| Fragrance | ? |
| Leaves | obovate |
| Leaf persistence | ? |
| Minimum Hardiness | ? |
| Registration | Registered |
