R. maddenii ssp maddenii 'Kotuko'
Species selection of R. maddenii ssp maddenii
| Selected By | Dunedin Rhododendron Group |
| Introduced | 1991 |
| 10 Year Height | ? |
| Bloom Time | ? |
| Flower | ? |
| Flower Color | ? |
| Fragrance | ? |
| Leaves | ? |
| Leaf persistence | ? |
| Plant Hardiness | ? |
| Flower Bud Hardiness |
? |
| Registration | Unknown or not recorded |