Hosta "Cosmic Brother" information:
| Size Category | large |
| Hosta height x width | 50x120 cm (20x47 in.) inches |
| Leaf length x width | 27x23 cm (11x9 in.) inches |
| Vein pairs | 14-16 |
| Leaf color | |
| Variegation | edge |
| Leaf type | |
| Petiole | |
| Scape | |
| Scape height | 100 cm (39 in.) |
| Flower | white |
| Fragrant | |
| Flower length | 5 cm (2 in.) |
| Flowering period | June - July |
| Fertile | yes |
| Pod | green |
| Ploidy | |
| Patents | |
| Sports | |
| Progeny |
