H. ‘Roscoe’
Hosta ‘Roscoe’ is a registered cultivar () .
| Year registered | 1999 |
|---|---|
| Section class | I-2 (Giant) |
Overview
Registered in 1999, *Hosta* 'Roscoe' is a giant hybrid derived from the pod parent *Hosta* 'Elegans' and pollen parent *Hosta* 'Frances Williams'. The cultivar is visually distinctive for its large, heavily textured blue-green leaves with slightly rippled margins and a pronounced glaucous bloom on both surfaces.
In the Garden
*Hosta* 'Roscoe' forms a substantial mound 24 inches (61.0 cm) tall and 48 inches (121.9 cm) in diameter, with a notably slow growth rate. It performs best in partial to full shade, where its blue-green foliage retains its glaucous quality; excessive sun may diminish the bloom. The broad, cordate-based leaves (12 inches long by 10 inches wide) and tall green scapes (24 to 28 inches) make this cultivar suitable as a specimen or background plant in shaded borders, paired with ferns or other shade-tolerant perennials that contrast in texture or color.
Care Notes
Provide consistent moisture during establishment, and apply a balanced fertilizer in early spring as growth emerges. As with many large-leaved hostas, slug and deer damage may occur and should be managed through cultural or physical controls.
Size and leaf
| Clump height | 24 in (61 cm) |
|---|---|
| Clump width | 48 in (121.9 cm) |
| Leaf length | 12 in (30.5 cm) |
| Leaf width | 10 in (25.4 cm) |
| Vein pairs | 18 |
| Leaf | medium blue green slightly rippled margins; glaucous bloom on top; glaucous bloom underneath |
| Flower scape height | 24–28 in (61.0–71.1 cm) |
From the American Hosta Society Registry record.
Parentage
- Pod parent: H. 'Elegans'
- Pollen parent: H. 'Frances Williams' — H. ‘Frances Williams’
Similar cultivars
Other registered hostas in the same AHS section class (I-2, giant size):
- H. ‘Abiqua Elephant Ears’ (1999)
- H. ‘Big and Blue’ (2000)
- H. ‘Hirao Zeus’ (1997)
- H. ‘Cool Change’ (1995)
- H. ‘Eola Sapphire’ (2004)
- H. ‘Gentle Giant’ (2005)
Related guides
Registration data: AHS Registry #4742