| Hosta | Cosmic Brother |
| Status | registered |
| Originator(s) | Rod Kuenster 2006 |
| Origin | 'Dorothy Benedict' x (x 'Dorothy Benedict') |
| Size category | large |
| Plant height x width | 50x120 cm (20x47 in.) |
| Leaf length x width | 27x23 cm (11x9 in.) |
| Vein pairs | 14-16 |
| Leaf color | green,pale yellow |
| Variegation | edge |
| Leaf | |
| Petiole | |
| Scape | |
| Scape height | 100 cm (39 in.) |
| Flower | white |
| Flower length | 5 cm (2 in.) |
| Fragrant | |
| Flowering period | June - July |
| Fertile | yes |
| Pod | green |
| Ploidy | |
| Patents | |
| Info | |
| Sports | |
| Progeny | |