R. 'Mary Ann Gelsthorpe'
Rhododendron Hybrid
| Hybridized By | Cowles, J.C. |
| Introduced | 1970 |
| 10 Year Height | ? |
| Bloom Time | midseason |
| Flower | funnel-shaped |
| Flower Color | ? |
| Fragrance | ? |
| Leaves | oblong |
| Leaf persistence | ? |
| Plant Hardiness | -10 C (14 F) |
| Flower Bud Hardiness |
? |
| Additional Hardiness Info |
H4 |
| Registration | Registered |