| Hosta | Hirao Zeus |
| Status | registered |
| Originator(s) | Shuichi Hirao/Pete Ruh 1997 |
| Origin | unknown |
| Size category | medium - large |
| Plant height x width | 71x120 cm (28x47 in.) |
| Leaf length x width | 32x25 cm (13x10 in.) |
| Vein pairs | 15 |
| Leaf color | blue-green |
| Variegation | |
| Leaf | dull, corrugated, broadly ovate |
| Petiole | |
| Scape | |
| Scape height | 80 cm (31 in.) |
| Flower | white,tubular |
| Flower length | 3 cm (1.2 in.) |
| Fragrant | |
| Flowering period | July |
| Fertile | yes |
| Pod | blue-green |
| Ploidy | |
| Patents | |
| Info | ='Tokudama Tetraploid' ='Hirao Tet large' ='Dr. Hirao Tetraploid' A selected form from Dr. Hirao, a little larger than type, a nice blue. Intense blue-green leaves with a slightly rippled margin. Pure white, tubular flowers. Upright growing with a moderate growth rate. |
| Sports | |
| Progeny | |