H. ‘Capricorn’
Hosta ‘Capricorn’ is a registered cultivar () .
| Year registered | 2009 |
|---|---|
| Section class | II-2 (Large) |
Overview
Registered in 2009 as an open-pollinated seedling of Hosta 'Rosedale Black Hole', 'Capricorn' is a large, fast-growing cultivar distinguished by its intensely blue-green, nearly round leaves with heavy corrugation, cupping, and twisting. The foliage carries a dull glaucous bloom on the upper surface and is flat-margined, with 14 to 15 pairs of veins per leaf.
In the Garden
'Capricorn' reaches approximately 33 inches (83.8 cm) in diameter and 23 inches (58.4 cm) in height, with an upright, somewhat unruly growth habit. It performs best in partial to full shade, as is typical for blue-leaved hostas, and is well suited to border plantings or as a specimen in woodland gardens. Its heavy substance and large size make it a substantial presence in the mid-border, where it can be paired with finer-textured shade perennials such as ferns or Heuchera.
Care Notes
Provide consistent moisture during the growing season, particularly in warmer climates, and apply a balanced fertilizer in early spring as new growth emerges. The thick leaves offer good resistance to slugs, but standard deer deterrents may be necessary in areas with heavy deer pressure.
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 | 23 in (58.4 cm) |
|---|---|
| Clump width | 33 in (83.8 cm) |
| Leaf length | 9 in (22.9 cm) |
| Leaf width | 8 in (20.3 cm) |
| Vein pairs | 15 |
| Leaf | intensely blue-green flat margins; dull glaucous bloom on top; dull underneath; intensely cupped, intensely twisted, intensely folded, intenselycorrugated |
| Flower scape height | 22–25 in (55.9–63.5 cm) |
| Notable characteristics | unruly growth habit, heavy substance, very pod fertile |
From the American Hosta Society Registry record.
Parentage
- Pod parent: H. 'Rosedale Black Hole' — H. ‘Rosedale Black Hole’
- Pollen parent: open pollinated
Similar cultivars
Other registered hostas in the same AHS section class (II-2, large size):
- H. ‘Aksarben’ (1988)
- H. ‘Abraham Lincoln’ (2009)
- H. ‘Back Bay’ (2009)
- H. ‘Bam Bam Blue’ (2009)
- H. ‘Blue Chiffon’ (2009)
- H. ‘Blue Ripples’ (2009)
Related guides
Registration data: AHS Registry #907. How we check this data.