R. 'Billy Wilder'
Rhododendron Hybrid
| Hybridized By | MacMullan, D. (Dennis). Hamburg, Pennsylvania, USA, 1983 |
| Seed Parent | R. 'Goldsworth Orange' |
| Pollen Parent | R. 'Inca Gold x yakushimanum X Catalgla x dichroanthum' |
| 10 Year Height | 120 cm. (4ft.) |
| Bloom Time | midseason |
| Flower | funnel-shaped |
| Predominant Colour | ? |
| Leaves | elliptic |
| Winter Foliage | ? |
| Hardiness | ? |
| Status | IRRC registered. |