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.
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. ‘Centennial’ (1996)
- H. ‘Elata’ (2002)
- H. ‘Irish Hills’ (1996)
- H. ‘Komodo Dragon’ (2004)
- H. ‘King James’ (1992)
Related guides
Registration data: AHS Registry #4893