R. 'Merkur'
Rhododendron Hybrid
| Hybridized By | Hobbie, Dietrich G. |
| Seed Parent | R. 'Louis Pasteur' |
| Pollen Parent | R. williamsianum |
| Introduced | 1948 |
| 10 Year Height | ? |
| Bloom Time | ? |
| Flower | ? |
| Predominant Colour | ? |
| Leaves | ? |
| Winter Foliage | ? |
| Hardiness | ? |
| Status | IRRC registered. |