R. 'Adriaan Koster'
Deciduous Azalea Hybrid
| Hybridized By | Koster M. & Sons |
| Azalea group | Mollis |
| Introduced | 1901 |
| 10 Year Height | ? |
| Bloom Time | ? |
| Flower | ? |
| Flower Color | ? |
| Fragrance | ? |
| Leaves | ? |
| Leaf persistence | ? |
| Minimum Hardiness | ? |
| Registration | Unknown or not recorded |
