Hosta "Sumi" information:
| Size Category | xtra large |
| Hosta height x width | 90x135 cm (35x53 in.) inches |
| Leaf length x width | 33x30 cm (13x12 in.) inches |
| Vein pairs | 14-16 |
| Leaf color | |
| Variegation | |
| Leaf type | wavy, ruffled edge, very corrugated |
| Petiole | wavy, ruffled edge, very corrugated |
| Scape | leafy bracts |
| Scape height | 90 cm (35 in.) |
| Flower | near white |
| Fragrant | |
| Flower length | |
| Flowering period | June - July |
| Fertile | |
| Pod | |
| Ploidy | |
| Patents | |
| Sports | |
| Progeny |
