| Hosta | Cosmic River |
| Status | registered |
| Originator(s) | Rod Kuenster 2011 |
| Origin | 'Misty May' x (x 'Misty May') |
| Size category | small |
| Plant height x width | 30x55 cm (12x22 in.) |
| Leaf length x width | 18x5 cm (7x2 in.) |
| Vein pairs | 6-8 |
| Leaf color | green,streaked,greenish-yellow,creamy white |
| Variegation | streaked |
| Leaf | a bit rippled, very shiny, lance, cupped, wavy |
| Petiole | streaked |
| Scape | green |
| Scape height | 80 cm (31 in.) |
| Flower | lavender,striped |
| Flower length | 5 cm (2 in.) |
| Fragrant | |
| Flowering period | July - August |
| Fertile | yes |
| Pod | green |
| Ploidy | |
| Patents | |
| Info | Narrow leaves with edge and cupping. Nice small clump with narrow leaves. |
| Sports | |
| Progeny | |