R. 'Impromptu'
Rhododendron Hybrid
| Hybridized By | Brueckner, J.B. |
| Introduced | 1981 |
| 10 Year Height | 100 cm. (3ft.) |
| Bloom Time | late midseason |
| Flower | broadly funnel-shaped |
| Flower Color | ? |
| Fragrance | ? |
| Leaves | elliptic |
| Leaf persistence | ? |
| Additional Parentage Info |
(Pinnacle open pollinated) x (open pollinated) |
| Minimum Hardiness | -15 C (5 F) |
| Additional Hardiness Info |
H5 |
| Registration | Registered |
