H. ‘Cosmic Knuckles’
Hosta ‘Cosmic Knuckles’ is a registered cultivar () .
| Year registered | 2015 |
|---|---|
| Section class | II-1 (Large) |
Overview
Registered in 2015, Hosta 'Cosmic Knuckles' is a large, variegated cultivar resulting from a cross between H. 'Fudge Ripple' (pod parent) and H. 'Website' (pollen parent). The cultivar is visually distinctive for its heavily corrugated, deeply twisted, and deeply wavy leaves with dark green, heavy rippled margins and a very shiny upper surface.
In the Garden
With a mature spread of 40 inches (101.6 cm) and height of 34 inches (86.4 cm), this upright, moderately growing hosta is best suited to partial to full shade in typical hosta-growing zones. Its bold, unruly foliage provides strong textural contrast when paired with finer-leaved perennials such as ferns or Heuchera; the large size makes it unsuitable for most containers.
Care Notes
Provide consistent moisture, particularly during establishment, and apply a balanced fertilizer in early spring as growth emerges. Standard hosta pest precautions apply: monitor for slugs and snails, and protect from deer where they are present.
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 | 34 in (86.4 cm) |
|---|---|
| Clump width | 40 in (101.6 cm) |
| Leaf length | 11.5 in (29.2 cm) |
| Leaf width | 9.5 in (24.1 cm) |
| Vein pairs | 16 |
| Leaf | dark green heavy rippled margins; very shiny on top; slightly shiny underneath; moderately cupped, deeply twisted, deeply wavy, deeply corrugated |
| Flower scape height | 40–44 in (101.6–111.8 cm) |
| Notable characteristics | very corrugated, unruly leaves |
From the American Hosta Society Registry record.
Parentage
- Pod parent: H. 'Fudge Ripple' — H. ‘Fudge Ripple’
- Pollen parent: H. 'Website' — H. ‘Website’
Similar cultivars
Other registered hostas in the same AHS section class (II-1, large size):
- H. ‘Aphrodite’ (2009)
- H. ‘Foxfire Irish Moon’ (2003)
- H. ‘Willy Nilly’ (1996)
- H. ‘Nakaimo’ (1986)
- H. ‘Pioneer’ (1984)
- H. ‘Ben’ (2015)
Related guides
Registration data: AHS Registry #1186. How we check this data.