| Hosta | Sea Slate II |
| Status | registered |
| Originator(s) | Mildred Seaver/AHS/Walek 2009 |
| Origin | unknown |
| Size category | large |
| Plant height x width | 60x135 cm (24x53 in.) |
| Leaf length x width | 30x22 cm (12x9 in.) |
| Vein pairs | 15-16 |
| Leaf color | blue-green |
| Variegation | |
| Leaf | thick, corrugated |
| Petiole | |
| Scape | |
| Scape height | 70 cm (28 in.) |
| Flower | near white |
| Flower length | 6.5 cm (2.6 in.) |
| Fragrant | |
| Flowering period | June - July |
| Fertile | |
| Pod | |
| Ploidy | |
| Patents | |
| Info | Large 10" blue leaves with good substance and lots of leaf margin undulation . |
| Sports | |
| Progeny | |