| Hosta | Janet's Joy |
| Status | registered |
| Originator(s) | Bob Keller 2001 |
| Origin | 'Dorothy Benedict' sport |
| Size category | medium - large |
| Plant height x width | |
| Leaf length x width | 25x20 cm (10x8 in.) |
| Vein pairs | |
| Leaf color | blue |
| Variegation | |
| Leaf | |
| Petiole | |
| Scape | |
| Scape height | |
| Flower | white |
| Flower length | |
| Fragrant | |
| Flowering period | June - July |
| Fertile | |
| Pod | |
| Ploidy | |
| Patents | |
| Info | This new introduction is named after our Daughter-in-law and our first grandchild, Robert IV. It is the all bluish/green version of 'Dorothy Benedict.' Corregated leaves with a glaucous underside. White flowers in June. |
| Sports | |
| Progeny | |