Hosta "Undertow" information:
| Size Category | |
| Hosta height x width | 25x75 cm (10x30 in.) inches |
| Leaf length x width | 18x7 cm (7x3 in.) inches |
| Vein pairs | 6 |
| Leaf color | |
| Variegation | edge |
| Leaf type | lance |
| Petiole | lance |
| Scape | green red base |
| Scape height | 50 cm (20 in.) |
| Flower | lavender |
| Fragrant | |
| Flower length | 7.5 cm (3 in.) |
| Flowering period | August - September |
| Fertile | yes |
| Pod | green |
| Ploidy | |
| Patents | |
| Sports | |
| Progeny |
