| Hosta | Sea Thunder |
| Status | registered |
| Originator(s) | Mildred Seaver/AHS/Walek 2009 |
| Origin | 'Sea Lightning' sport |
| Size category | medium - large |
| Plant height x width | 50x120 cm (20x47 in.) |
| Leaf length x width | 20x11 cm (8x4 in.) |
| Vein pairs | 9 |
| Leaf color | (creamy yellow>white),dark green edge |
| Variegation | medio |
| Leaf | corrugated, a bit wavy |
| Petiole | |
| Scape | green streaked cream |
| Scape height | 90 cm (35 in.) |
| Flower | pale purple,funnel |
| Flower length | |
| Fragrant | |
| Flowering period | July - August |
| Fertile | |
| Pod | |
| Ploidy | |
| Patents | |
| Info | 12" tall. Part Sun to Light Shade. Green with very wide white center streak. Upright habit. Dark green white center, very upright in habit. An excellent specimen. This is one of the finest center variegated hostas available today. When grown in plenty of morning sun, it grows, it's vigorous... it's just great. The glossy green leaves have a spectacular creamy gold centered variegation. The 1' tall x 1' wide clump is topped with lavender flowers during the summer! Plant has a very wide center streak w/medium green margins; lav. flwrs. One of the best of Mildred Seaver's hostas, a medium size plant with upright, green leaves with a very wide white streak in the center. A true standout. Lavender flowers. |
| Sports | 'American Sweetheart' sport/wg |
| Progeny | |