R. 'Souvenir de D.A. Koster'
Rhododendron Hybrid
| Hybridized By | Koster, D.A. |
| Seed Parent | R. 'Doncaster' |
| Pollen Parent | R. 'Charlie Waterer' |
| Introduced | 1958 |
| 10 Year Height | ? |
| Bloom Time | ? |
| Flower | broadly funnel-shaped |
| Flower Color | ? |
| Fragrance | ? |
| Leaves | oblong-elliptic |
| Leaf persistence | ? |
| Minimum Hardiness | ? |
| Registration | Registered |
