R. 'Grierdal Group'
Rhododendron Cultivar group
| Hybridized By | Heneage-Vivian, A.W., 1937 |
| Seed Parent | R. griersonianum |
| Pollen Parent | R. dalhousiae var dalhousiae |
| 10 Year Height | ? |
| Bloom Time | ? |
| Flower | tubular |
| Predominant Colour | ? |
| Leaves | ? |
| Winter Foliage | ? |
| Hardiness | ? |
| Status | IRRC registered. |