H. ‘Cosmic Knuckles’

Hosta 'Cosmic Knuckles'
Illustration: The Hosta Farm Editorial Team.

Hosta ‘Cosmic Knuckles’ is a registered cultivar () .

Year registered2015
Section classII-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 height34 in (86.4 cm)
Clump width40 in (101.6 cm)
Leaf length11.5 in (29.2 cm)
Leaf width9.5 in (24.1 cm)
Vein pairs16
Leafdark green heavy rippled margins; very shiny on top; slightly shiny underneath; moderately cupped, deeply twisted, deeply wavy, deeply corrugated
Flower scape height40–44 in (101.6–111.8 cm)
Notable characteristicsvery corrugated, unruly leaves

From the American Hosta Society Registry record.

Parentage

Similar cultivars

Other registered hostas in the same AHS section class (II-1, large size):

Related guides

Registration data: AHS Registry #1186