R. 'Billy Wilder'
Rhododendron Hybrid
| Hybridized By | MacMullan, D. (Dennis) |
| Seed Parent | R. 'Goldsworth Orange' |
| Pollen Parent | R. 'Inca Gold x yakushimanum X Catalgla x dichroanthum' |
| Introduced | 1983 |
| 10 Year Height | 120 cm. (4ft.) |
| Bloom Time | midseason |
| Flower | funnel-shaped |
| Flower Color | ? |
| Fragrance | ? |
| Leaves | elliptic |
| Leaf persistence | ? |
| Plant Hardiness | ? |
| Flower Bud Hardiness |
? |
| Registration | Registered |