R. 'Oberbürgermeister Janssen'
Rhododendron Hybrid
| Synonyms |
R.
'Maientag'
R. 'Mayor Johnstone' |
| Hybridized By | Bruns, J Nursery |
| Seed Parent | R. 'May Day Group' |
| Pollen Parent | R. 'Goldsworth Orange' |
| Introduced | 1952 |
| 10 Year Height | 150 cm. (5ft.) |
| Bloom Time | ? |
| Flower | ? |
| Flower Color | ? |
| Leaves | broadly ovate |
| Winter Foliage | ? |
| Minimum Hardiness | ? |
| Registration | IRRC registered |
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