R. 'Calder'
Azalea Hybrid
| Hybridized By | Hanger, F.E.W. | RHS Garden, Wisley, Surrey | England, 1948 |
| Azalea group | Knap Hill |
| Seed Parent | ? |
| Pollen Parent | ? |
| 10 Year Height | 150 cm. (5ft.) |
| Bloom Time | ? |
| Flower | openly funnel-shaped |
| Predominant Colour | ? |
| Leaves | ? |
| Winter Foliage | ? |
| Hardiness | ? |
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