R. 'Radium Group'
Rhododendron Cultivar group
| Hybridized By | Crosfield, J. J. |
| Seed Parent | R. griersonianum |
| Pollen Parent | R. 'Earl of Athlone' |
| Introduced | 1936 |
| 10 Year Height | 150 cm. (5ft.) |
| Bloom Time | ? |
| Flower | ? |
| Flower Color | ? |
| Fragrance | ? |
| Leaves | ? |
| Leaf persistence | ? |
| Minimum Hardiness | ? |
| Registration | Registered |