R. 'Martha May'
Rhododendron Hybrid
| Hybridized By | Henny, Rudolph |
| Seed Parent | R. 'Mars' |
| Pollen Parent | R. 'Tally Ho Group' |
| Introduced | 1964 |
| 10 Year Height | 250 cm. (8ft.) |
| Bloom Time | late |
| Flower | ? |
| Predominant Colour | ? |
| Leaves | ? |
| Winter Foliage | ? |
| Hardiness | ? |
| Status | IRRC registered. |