R. 'John Tremayne'
Rhododendron Hybrid
| Hybridized By | Tremayne, J., 1920 |
| Seed Parent | R. arboreum ssp arboreum |
| Pollen Parent | R. griffithianum |
| 10 Year Height | ? |
| Bloom Time | ? |
| Flower | campanulate |
| Predominant Colour | ? |
| Leaves | obovate |
| Winter Foliage | ? |
| Hardiness | ? |
| Status | IRRC registered. |
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