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