| Hosta | Blue Bayou |
| Status | registered |
| Originator(s) | Kevin Vaughn 1987 |
| Origin | 'Frances Williams' hybrid |
| Size category | large |
| Plant height x width | 85x100 cm (33x39 in.) |
| Leaf length x width | 25x20 cm (10x8 in.) |
| Vein pairs | 9-12 |
| Leaf color | blue-green>green |
| Variegation | |
| Leaf | heavy, cupped, rugose |
| Petiole | |
| Scape | |
| Scape height | 115 cm (45 in.) |
| Flower | lavender |
| Flower length | |
| Fragrant | |
| Flowering period | June - August |
| Fertile | |
| Pod | |
| Ploidy | |
| Patents | |
| Info | =sieboldiana 'Blue Bayou'. A handsome plant, shiny blue-gray backed leaves with heavy substance. Greyish white backed, semi-shiny blue that is a super garden specimen. Reblooms. |
| Sports | |
| Progeny | 'Bluestone' = 'Gold Regal' x PP |