R. 'Gräfin Sonja'
Rhododendron Hybrid
| Synonyms | R. 'Tivoli' |
| Hybridized By | Bruns, J Nursery |
| Seed Parent | R. 'insigne x El Alamein' |
| Pollen Parent | R. 'Blue Peter' |
| Introduced | 1970 |
| 10 Year Height | 120 cm. (4ft.) |
| Bloom Time | late midseason |
| Flower | openly funnel-shaped |
| Flower Color | ? |
| Fragrance | ? |
| Leaves | ? |
| Leaf persistence | ? |
| Minimum Hardiness | ? |
| Registration | Registered |
