H. ‘Blockbuster’
Hosta ‘Blockbuster’ is a registered cultivar () .
| Year registered | 2003 |
|---|---|
| Section class | I-7 (Giant) |
Overview
Registered in 2003, Hosta 'Blockbuster' is a giant cultivar resulting from a cross between H. 'Sea Prize' and H. 'Maekawa'. It is visually distinctive for its large, nearly round, deeply corrugated leaves that are dark green with unstable streaks of blue-green, medium green, greenish yellow, yellow, and creamy white, set off by white margins.
In the Garden
'Blockbuster' reaches a mature spread of 61 inches (154.9 cm) and a height of 31 inches (78.7 cm), with an upright growth habit and moderate growth rate. It performs best in partial to full shade, as is typical for blue-green hostas, and pairs well with ferns, astilbes, and other shade perennials that contrast with its bold foliage. Its substantial size makes it suitable as a specimen or background plant in woodland borders.
Care Notes
Water regularly to maintain consistent moisture, especially during dry periods; fertilize in early spring as growth emerges. The thick, corrugated leaves offer good slug resistance, though standard deer deterrents may be needed in areas with heavy browsing pressure.
This summary was generated with AI from the registry record and has not been reviewed yet; the registry data on this page is the reference. How we use AI.
Size and leaf
| Clump height | 31 in (78.7 cm) |
|---|---|
| Clump width | 61 in (154.9 cm) |
| Leaf length | 15.5 in (39.4 cm) |
| Leaf width | 13.25 in (33.7 cm) |
| Vein pairs | 14 |
| Leaf | dark green with unstable streaks of blue green, medium green, greenish yellow, yellow and creamy whi slightly rippled margins; slightly shiny on top; glaucous bloom underneath; deeply corrugated and moderately cupped |
| Flower scape height | 33–36 in (83.8–91.4 cm) |
| Notable characteristics | streaked pod parent; white-backed; good substance |
From the American Hosta Society Registry record.
Parentage
- Pod parent: H. 'Sea Prize' — H. ‘Sea Prize’
- Pollen parent: H. 'Maekawa' — H. ‘Maekawa’
Similar cultivars
Other registered hostas in the same AHS section class (I-7, giant size):
- H. ‘Niagara on the Lake’ (2003)
- H. ‘Northern Mystery’ (2009)
- H. ‘Galaxy’ (1987)
- H. ‘All This and Heaven Too’ (2003)
- H. ‘Big Mamma's House’ (2003)
- H. ‘Blizzard’ (2003)
Related guides
Registration data: AHS Registry #564. How we check this data.