| Hosta | Ryan's Big One |
| Status | registered |
| Originator(s) | Larry Englerth 1982 |
| Origin | unknown |
| Size category | xtra large |
| Plant height x width | |
| Leaf length x width | 38x32 cm (15x13 in.) |
| Vein pairs | 15 |
| Leaf color | blue-green |
| Variegation | |
| Leaf | rounded, rugose |
| Petiole | |
| Scape | |
| Scape height | 135 cm (53 in.) |
| Flower | pale lavender,flaring |
| Flower length | |
| Fragrant | |
| Flowering period | June - July |
| Fertile | yes |
| Pod | |
| Ploidy | |
| Patents | |
| Info | ='Ryans Big One'. Large, blue. Hosta sieboldiana type. Named after Louise Ryan who grew it as a seedling in her garden as far as 1963. |
| Sports | 'Leather Coat' sport/gg 'Louise Ryan' sport/gw 'Princess Anastasia' sport/yg |
| Progeny | |