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 | ? |
| Leaves | oblong-elliptic |
| Winter Foliage | ? |
| Hardiness | ? |
| Status | IRRC registered. |
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