H. ‘Rough Knight’
Hosta ‘Rough Knight’ is a registered cultivar () .
| Year registered | 2013 |
|---|---|
| Section class | II-2 (Large) |
Overview
Registered in 2013, 'Rough Knight' is a large blue-green hosta of open-pollinated parentage from Hosta 'King of Spades'. Its most distinctive features are the nearly round, heavily corrugated leaves with a pronounced glaucous bloom on both surfaces, all arising from a central point to form a dense, mound-like habit.
In the Garden
'Rough Knight' reaches approximately 36 inches (91 cm) in diameter and 10 inches (25 cm) in height, with a moderate growth rate. The substantial, cupped leaves—8.5 inches long by 8 inches wide—create a bold textural presence in part to full shade. Its blue-green coloration pairs well with golden or chartreuse-foliaged companions such as Hosta 'Sum and Substance' or Carex elata 'Aurea'. The low, compact mound makes it suitable for the middle of a shaded border or as a specimen in a large container.
Care Notes
Provide consistent moisture, especially during establishment, and apply a balanced slow-release fertilizer in early spring as new growth emerges. Standard slug and deer precautions are advisable, as the thick, corrugated leaves may still be palatable to these pests in typical hosta-growing zones.
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 | 10 in (25.4 cm) |
|---|---|
| Clump width | 36 in (91.4 cm) |
| Leaf length | 8.5 in (21.6 cm) |
| Leaf width | 8 in (20.3 cm) |
| Vein pairs | 11 |
| Leaf | medium blue-green flat margins; glaucous bloom on top; glaucous bloom underneath; moderately cupped, lightly wavy, moderately corrugated |
| Flower scape height | 24 in (61.0 cm) |
| Notable characteristics | cupped leaves all coming from a central point |
From the American Hosta Society Registry record.
Parentage
- Pod parent: (H. 'King of Spades' open pollinated sdlg) — H. ‘King of Spades’
- Pollen parent: open pollinated sdlg
Similar cultivars
Other registered hostas in the same AHS section class (II-2, large size):
- H. ‘Aksarben’ (1988)
- H. ‘Bluer than Blue’ (2013)
- H. ‘Country Dreaming’ (2013)
- H. ‘High Impact’ (2013)
- H. ‘Jetstream’ (2013)
- H. ‘Kris Krinkle’ (2013)
Related guides
Registration data: AHS Registry #4845. How we check this data.