R. 'Prolific'
Rhododendron Hybrid
| Hybridized By | Delp Weldon E. |
| Seed Parent | R. 'Newport' |
| Pollen Parent | R. 'Lee's Dark Purple' |
| Introduced | 1956 |
| 10 Year Height | 200 cm. (7ft.) |
| Bloom Time | late |
| Flower | broadly funnel-campanulate |
| Predominant Colour | ? |
| Leaves | obtuse |
| Winter Foliage | ? |
| Hardiness | ? |
| Status | IRRC registered. |