R. 'Red Jack'
Rhododendron Hybrid
| Hybridized By | Research Station for Woody Nursery Crops |
| Seed Parent | R. 'Wilgen's Ruby x May Day Group' |
| Pollen Parent | ? |
| Introduced | 1975 |
| 10 Year Height | 300 cm. (10ft.) |
| Bloom Time | ? |
| Flower | funnel-shaped |
| Flower Color | ? |
| Fragrance | ? |
| Leaves | ovate |
| Leaf persistence | ? |
| Additional Parentage Info |
() x (forrestii hybrid) |
| Minimum Hardiness | -10 C (14 F) |
| Additional Hardiness Info |
H4 |
| Registration | Registered |
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