R. 'Thomwilliams Group'
Rhododendron Cultivar group
| Hybridized By | Magor, E.J.P. |
| Seed Parent | R. thomsonii ssp thomsonii |
| Pollen Parent | R. williamsianum |
| Introduced | 1921 |
| 10 Year Height | ? |
| Bloom Time | ? |
| Flower | ? |
| Flower Color | ? |
| Leaves | ? |
| Winter Foliage | ? |
| Minimum Hardiness | ? |
| Registration | IRRC registered |
