Hosta "Number One" information:
| Size Category | small |
| Hosta height x width | 45x120 cm (18x47 in.) inches |
| Leaf length x width | 13x10 cm (5x4 in.) inches |
| Vein pairs | 8-9 |
| Leaf color | |
| Variegation | |
| Leaf type | |
| Petiole | |
| Scape | |
| Scape height | 130 cm (51 in.) |
| Flower | light lilac |
| Fragrant | |
| Flower length | |
| Flowering period | June - July |
| Fertile | |
| Pod | |
| Ploidy | |
| Patents | |
| Sports | |
| Progeny |
