H. ‘Robust Giant’
Hosta ‘Robust Giant’ is a registered cultivar () .
| Year registered | 2005 |
|---|---|
| Section class | II-1 (Large) |
Overview
Registered in 2005, 'Robust Giant' is a large, mound-forming hosta cultivar of unknown parentage, formerly known as *Fortunei Robusta*. It is visually distinctive for its ovate, cupped leaves with light to medium green, slightly rippled margins and a dull surface on both sides, supported by a notably heavy, glaucous green scape.
In the Garden
'Robust Giant' reaches a mature spread of approximately 31 inches (78.7 cm) and a height of 18 inches (45.7 cm), with a moderate growth rate. It performs best in partial to full shade, typical for hostas, and its substantial, corrugated foliage pairs well with ferns, astilbes, or other shade-tolerant perennials. Its tall scapes, reaching 35 to 46 inches (88.9 to 116.8 cm), make it suitable for mid-border positions.
Care Notes
Water regularly during dry periods to maintain soil moisture, and apply a balanced fertilizer in early spring as new growth emerges. The thick leaves offer some resistance to slugs, though standard slug control is advisable in damp conditions; deer may browse the foliage.
Size and leaf
| Clump height | 18 in (45.7 cm) |
|---|---|
| Clump width | 31 in (78.7 cm) |
| Leaf length | 11 in (27.9 cm) |
| Leaf width | 6.63 in (16.8 cm) |
| Vein pairs | 13 |
| Leaf | light to medium green slightly rippled margins; dull on top; dull underneath; cupped, folded, wavy, slightly corrugated |
| Flower scape height | 35–46 in (88.9–116.8 cm) |
| Notable characteristics | former name Fortunei Robusta, heavy flower scape |
From the American Hosta Society Registry record.
Similar cultivars
Other registered hostas in the same AHS section class (II-1, large size):
- H. ‘Foxfire Irish Moon’ (2003)
- H. ‘Aphrodite’ (2009)
- H. ‘Tracy's Emerald Cup’ (1997)
- H. ‘Willy Nilly’ (1996)
- H. ‘Ben’ (2015)
- H. ‘Duke’ (1988)
Related guides
Registration data: AHS Registry #4713