R. 'Sunup-Sundown'
Rhododendron Hybrid
| Synonyms | R. 'Sunrise-Sunset' |
| Hybridized By | Lofthouse, J.G. |
| Seed Parent | R. 'yakushimanum x Fabia Group' |
| Pollen Parent | R. 'Fabia Group x bureavii X Crest' |
| Introduced | 1975 |
| 10 Year Height | ? |
| Bloom Time | ? |
| Flower | ? |
| Flower Color | ? |
| Leaves | ? |
| Winter Foliage | ? |
| Hardiness | ? |
| Status | IRRC registered. |
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