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.
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 | 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. ‘Azure Snow’ (1991)
- H. ‘Brookwood Blue’ (1991)
- H. ‘Sky Kissed’ (1991)
- H. ‘Blue Gown’ (1992)
- H. ‘Blue Plisse’ (1990)
Related guides
Registration data: AHS Registry #5000. How we check this data.