H. ‘Rock of Gibraltar’

AI-generated watercolor illustration of Hosta 'Rock of Gibraltar' (not a photograph)
AI-generated watercolor illustration by The Hosta Farm — not a photograph of this cultivar. How we use images

Hosta ‘Rock of Gibraltar’ is a registered cultivar () .

Year registered2010
Section classIII-2 (Medium)

Overview

Registered in 2010, 'Rock of Gibraltar' is a sport of Hosta 'Chain Lightning' that distinguishes itself through its blue-green foliage, a departure from the lighter green of its parent. This medium-sized cultivar forms a dense, mound-like clump with broadly ovate, deeply corrugated leaves that display a distinct glaucous bloom on both surfaces.

In the Garden

'Rock of Gibraltar' reaches 18 inches (45.7 cm) in height and spreads to 30 inches (76.2 cm) in diameter, with a fast growth rate that allows it to fill space efficiently. Its blue-green, moderately cupped leaves with flat margins and wavy edges make it suitable for partially shaded borders or woodland gardens, where its corrugated texture provides visual contrast against finer-textured perennials such as ferns or Heuchera.

Care Notes

Provide consistent moisture during dry periods, particularly in the first growing season, and apply a balanced fertilizer in early spring as new growth emerges. Like most hostas, 'Rock of Gibraltar' is susceptible to slug and deer damage 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 height18 in (45.7 cm)
Clump width30 in (76.2 cm)
Leaf length7 in (17.8 cm)
Leaf width5.75 in (14.6 cm)
Vein pairs12
Leafmedium blue-green flat margins; glaucous bloom on top; glaucous bloom underneath; moderately cupped, moderately wavy, deeply corrugated
Flower scape height24 in (61.0 cm)
Seasonal colour changedark green by mid summer
Notable characteristicsfast growing, blue green version of H. 'Chain Lightning'

From the American Hosta Society Registry record.

Parentage

Similar cultivars

Other registered hostas in the same AHS section class (III-2, medium size):

Related guides

Registration data: AHS Registry #4722. How we check this data.