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.
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. ‘Ben’ (2015)
- H. ‘Aphrodite’ (2009)
- H. ‘Foxfire Irish Moon’ (2003)
- H. ‘Tracy's Emerald Cup’ (1997)
- H. ‘Willy Nilly’ (1996)
- H. ‘Duke’ (1988)
Related guides
Registration data: AHS Registry #1186