H. ‘Sea Grotto’
Hosta ‘Sea Grotto’ is a registered cultivar () , originated by M. Seaver & P. Ruh.
| Year registered | 1991 |
|---|---|
| Registrant | M. Seaver & P. Ruh |
| Section class | II-2 (Large) |
Overview
Registered in 1991 by M. Seaver and P. Ruh, 'Sea Grotto' is a large blue-green hosta cultivar of unknown parentage. It is visually distinctive for its broad, cordate leaves with blue-green margins and prominent veining, forming a dense, mounded clump.
In the Garden
This cultivar reaches a mature height of 17 inches (43.2 cm) and spreads to 23 inches (58.4 cm) in diameter, making it suitable for mid-border or groundcover positions in partial to full shade. Its large, blue-green foliage pairs well with ferns, heucheras, and other shade-tolerant perennials. The scape rises to 18.5 inches (47.0 cm) and bears pale lavender flowers in midsummer.
Care Notes
Provide consistent moisture, especially during dry periods, and apply a balanced fertilizer in early spring as new growth emerges. Like most large-leaved hostas, 'Sea Grotto' is susceptible to slug and deer damage and may require protective measures in areas where these pests are prevalent.
Size and leaf
| Clump height | 17 in (43.2 cm) |
|---|---|
| Clump width | 23 in (58.4 cm) |
| Leaf length | 8.75 in (22.2 cm) |
| Leaf width | 8.5 in (21.6 cm) |
| Vein pairs | 15 |
| Flower scape height | 18.5 in (47.0 cm) |
From the American Hosta Society Registry record.
Similar cultivars
Other registered hostas in the same AHS section class (II-2, large size):
- H. ‘Aksarben’ (1988)
- H. ‘Blue Rock’ (1986)
- H. ‘Queen of the Seas’ (2001)
- H. ‘Neptune’ (2006)
- H. ‘Blue Ripples’ (2009)
- H. ‘Blue Tips’ (2009)
Related guides
Registration data: AHS Registry #5000