R. 'Bertha'
Rhododendron Hybrid
| Hybridized By | Seidel, T.J.R. |
| Seed Parent | R. 'Everestianum' |
| Pollen Parent | R. 'Everestianum' |
| Introduced | 1892 |
| 10 Year Height | ? |
| Bloom Time | ? |
| Flower | ? |
| Predominant Colour | ? |
| Leaves | ? |
| Winter Foliage | ? |
| Hardiness | ? |
| Status | IRRC registered. |