H. ‘Ocean Isle’
Hosta ‘Ocean Isle’ is a registered cultivar () .
| Year registered | 2006 |
|---|---|
| Section class | I-5b (Giant) |
Overview
Registered in 2006, Hosta 'Ocean Isle' is a sport of H. 'El Dorado' distinguished by its giant size and bold, heavily rippled golden yellow margins surrounding a medium blue-green leaf center. The cultivar's broad, ovate leaves with cordate bases display a glaucous bloom on both surfaces and are notable for their high vein count (16 to 20 pairs), moderate corrugation, and wide margins measuring 1.5 to 3 inches (3.8 to 7.6 cm) across.
In the Garden
This hosta forms a dense, mound-like clump reaching 20 inches (50.8 cm) in height and 45 inches (114.3 cm) in diameter, with a moderate growth rate. It performs best in partial to full shade, where the blue-green centers contrast effectively with the gold margins; excessive sun may scorch the thin, rippled edges. The large scale makes it suitable as a specimen or focal point in shaded borders, and its substantial leaves pair well with ferns, astilbes, or other shade-tolerant perennials of contrasting texture.
Care Notes
Water regularly to maintain consistent moisture, especially during dry periods, and apply a balanced fertilizer in early spring as growth emerges. Like most large-leaved hostas, 'Ocean Isle' is susceptible to slug and deer damage, so protective measures may be necessary in areas where these pests are prevalent.
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 | 20 in (50.8 cm) |
|---|---|
| Clump width | 45 in (114.3 cm) |
| Leaf length | 12.75 in (32.4 cm) |
| Leaf width | 10.75 in (27.3 cm) |
| Vein pairs | 20 |
| Leaf | medium blue-green with 1.5 to 3in (3.8 to 7.6cm) wide, golden yellow, heavily rippled margins; glaucous bloom on top; glaucous bloom underneath; lightly folded, moderately wavy, moderately corrugated |
| Flower scape height | 36–40 in (91.4–101.6 cm) |
| Seasonal colour change | emerges blue-green, develops a bright gold edge, center becomes rich green in summer |
| Notable characteristics | with high vein count, rippled edge, and wide gold margins |
From the American Hosta Society Registry record.
Parentage
- Sport parent: Sport of H. 'El Dorado' — H. ‘El Dorado’
Similar cultivars
Other registered hostas in the same AHS section class (I-5b, giant size):
- H. ‘Liberty’ (2000)
- H. ‘David A. Haskell’ (1999)
- H. ‘Frances Williams’ (1986)
- H. ‘All that Jazz’ (2006)
- H. ‘Summa Cum Laude’ (2006)
- H. ‘American Gladiator’ (2007)
Related guides
Registration data: AHS Registry #4079. How we check this data.