| Hosta | Sea Monster |
| Status | registered |
| Originator(s) | Mildred Seaver 1978 |
| Origin | 'Brookwood Blue' seedling |
| Size category | xtra large |
| Plant height x width | |
| Leaf length x width | 65x28 cm (26x11 in.) |
| Vein pairs | 16 |
| Leaf color | blue-green |
| Variegation | |
| Leaf | cupped, rugose |
| Petiole | |
| Scape | |
| Scape height | 70 cm (28 in.) |
| Flower | white,flaring |
| Flower length | |
| Fragrant | |
| Flowering period | July |
| Fertile | |
| Pod | |
| Ploidy | |
| Patents | |
| Info | Large, bright green cupped leaves. White flowers in July. Blue green cupped rugose leaves. White flowers. Extremely cupped and crinkled blue-green leaves with white flowers. Very large, bluish green leaves, cupped and extremely puckered. Makes a very impressive specimen. White flowers. This will form a large mound of intensely corrugated green foliage. It has excellent substance. Near-white flowers. Large plant. Green leaves corrugated. Good substance. Flowers near white. |
| Sports | 'Lochness Monster' sport/gy |
| Progeny | 'American Monster' = PP x 'Tokudama Aureonebulosa' 'Lakeside Main Man' = "unnamed seedling" x PP 'Lochness' hybrid 'Monster Babe' hybrid 'Swamp Monster' hybrid 'Timeless Treasure' seedling |