H. ‘Russ O'Harra’
Hosta ‘Russ O'Harra’ is a registered cultivar () , originated by Russ O'Harra Hosta Society.
| Year registered | 1999 |
|---|---|
| Registrant | Russ O'Harra Hosta Society |
| Section class | I-1 (Giant) |
Overview
Registered in 1999 by the Russ O'Harra Hosta Society, this giant blue-green cultivar was developed from a select form of Hosta nigrescens 'Elatior'. It is visually distinctive for its very large, cordate leaves with a glaucous bloom on the undersides and a slightly shiny upper surface, borne on upright scapes reaching over six feet.
In the Garden
'Russ O'Harra' reaches a mature diameter of 78 inches (198 cm) and a height of 40 inches (102 cm), with scapes extending 72 to 74 inches (183–188 cm) above the foliage. It is best sited in partial to full shade, where its blue-green color holds best, and performs well as a specimen or backdrop plant in large borders. Its substantial size makes it unsuitable for containers.
Care Notes
Water regularly during dry periods, especially when establishing. Apply a balanced fertilizer in early spring as growth emerges. The thick leaves show moderate slug resistance, but standard slug control measures may still be warranted in damp conditions.
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 | 40 in (101.6 cm) |
|---|---|
| Clump width | 78 in (198.1 cm) |
| Leaf length | 20 in (50.8 cm) |
| Leaf width | 15 in (38.1 cm) |
| Vein pairs | 15 |
| Leaf | medium green flat margins; slightly shiny on top; glaucous bloom underneath |
| Flower scape height | 72–74 in (182.9–188.0 cm) |
From the American Hosta Society Registry record.
Parentage
- Pod parent: Select form of H. nigrescens 'Elatior' — H. ‘Elatior’
Similar cultivars
Other registered hostas in the same AHS section class (I-1, giant size):
- H. ‘Green Dragonet’ (1999)
- H. ‘King James’ (1992)
- H. ‘Niagara Falls’ (1991)
- H. ‘Empress Wu’ (2008)
- H. ‘Armani’ (2015)
- H. ‘American Dark Angel’ (1999)
Related guides
Registration data: AHS Registry #4893. How we check this data.