| Hosta | Uniquely Inconceivable |
| Status | registered |
| Originator(s) | Marlene Rosenberg & Jonathan Goodrich 2020 |
| Origin | 'Fickle Blue Genes' seedling |
| Size category | large |
| Plant height x width | 80x170 cm (31x67 in.) |
| Leaf length x width | 38x33 cm (15x13 in.) |
| Vein pairs | 18 |
| Leaf color | |
| Variegation | |
| Leaf | cupped, corrugated |
| Petiole | |
| Scape | |
| Scape height | |
| Flower | white |
| Flower length | |
| Fragrant | N |
| Flowering period | June - July |
| Fertile | yes |
| Pod | |
| Ploidy | |
| Patents | |
| Info | Large blue cupped leaves with rippled edges and white backs. |
| Sports | |
| Progeny | |