R. 'James Mason'
Rhododendron Hybrid
| Hybridized By | Waterer (Bagshot) |
| Seed Parent | R. catawbiense |
| Pollen Parent | ? |
| Introduced | 1882 |
| 10 Year Height | ? |
| Bloom Time | ? |
| Flower | broadly funnel-shaped |
| Predominant Colour | ? |
| Leaves | elliptic to obovate |
| Winter Foliage | ? |
| Hardiness | ? |
| Status | IRRC registered. |