R. 'Purpureum Grandiflorum'
Rhododendron Hybrid
| Hybridized By | Waterer, H. (Knaphill) |
| Seed Parent | R. catawbiense |
| Pollen Parent | ? |
| Introduced | 1850 |
| 10 Year Height | ? |
| Bloom Time | ? |
| Flower | ? |
| Flower Color | ? |
| Fragrance | ? |
| Leaves | ? |
| Leaf persistence | ? |
| Minimum Hardiness | ? |
| Registration | Registered |
