H. ‘High Impact’
Hosta ‘High Impact’ is a registered cultivar () .
| Year registered | 2013 |
|---|---|
| Section class | II-2 (Large) |
Overview
Registered in 2013 as an open-pollinated seedling of *Hosta* 'Sagae', 'High Impact' forms a large, upright clump distinguished by its silvery blue-gray leaves with slightly rippled, light green margins. The foliage carries a glaucous bloom on both surfaces, and the scapes produce notable, bird-like flower buds.
In the Garden
'High Impact' reaches a mature size of approximately 19 inches (48.3 cm) in height and 22 inches (55.9 cm) in diameter, with a slow growth rate. It performs best in partial to full shade, typical of most hostas, and its substantial blue-green leaves provide strong textural contrast when paired with fine-textured ferns or golden-leaved companions such as *Hakonechloa macra* 'Aureola'. The upright habit and large, ovate leaves with cordate bases make it suitable as a specimen or in mixed shade borders.
Care Notes
Provide consistent moisture, especially during dry periods, and apply a balanced fertilizer in early spring as new growth emerges. As with many large-leaved hostas, slug and deer damage may occur and should be managed through cultural or physical barriers.
Size and leaf
| Clump height | 19 in (48.3 cm) |
|---|---|
| Clump width | 22 in (55.9 cm) |
| Leaf length | 10 in (25.4 cm) |
| Leaf width | 6.75 in (17.1 cm) |
| Vein pairs | 12 |
| Leaf | silvery light green gray blue slightly rippled margins; glaucous bloom on top; glaucous bloom underneath; lightly folded, moderately wavy |
| Flower scape height | 22–33 in (55.9–83.8 cm) |
| Notable characteristics | silvery blue gray, elegant, bird like flower buds |
From the American Hosta Society Registry record.
Parentage
- Pod parent: H. 'Sagae' — H. ‘Sagae’
- Pollen parent: OP
Similar cultivars
Other registered hostas in the same AHS section class (II-2, large size):
- H. ‘Blue Ripples’ (2009)
- H. ‘Blue Tips’ (2009)
- H. ‘Neptune’ (2006)
- H. ‘Queen of the Seas’ (2001)
- H. ‘Aksarben’ (1988)
- H. ‘Blue Rock’ (1986)
Related guides
Registration data: AHS Registry #2550