H. ‘Summer Squall’
Hosta ‘Summer Squall’ is a registered cultivar () .
| Year registered | 2007 |
|---|---|
| Section class | III-2 (Medium) |
Overview
Registered in 2007, 'Summer Squall' is a medium-sized hosta resulting from an F2 cross of a notably blue Hosta sieboldiana with Hosta longipes, combined with the cultivar 'One Man's Treasure'. The plant is distinguished by its intensely blue-green, deeply folded, ovate leaves with cordate bases, a glaucous bloom on both surfaces, and flat margins.
In the Garden
'Summer Squall' forms a dense, mound-like clump reaching 12 inches (30.5 cm) in height and 32 inches (81.3 cm) in diameter, with a moderate growth rate. It performs best in partial to full shade, typical for blue-leaved hostas, where its glaucous foliage retains its color. The blue scapes, rising 32 to 34 inches (81.3 to 86.4 cm) tall, make it suitable for mid-border positions or as a specimen among ferns and shade-tolerant perennials.
Care Notes
Provide consistent moisture during dry periods; apply a balanced fertilizer in early spring as growth emerges. While slug and deer resistance is not absolute, the thick, glaucous leaves offer moderate deterrence in typical hosta-growing zones.
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 | 12 in (30.5 cm) |
|---|---|
| Clump width | 32 in (81.3 cm) |
| Leaf length | 7.5 in (19.1 cm) |
| Leaf width | 5 in (12.7 cm) |
| Vein pairs | 11 |
| Leaf | intensely blue-green flat margins; glaucous bloom on top; glaucous bloom underneath; deeply folded |
| Flower scape height | 32–34 in (81.3–86.4 cm) |
| Notable characteristics | F2 cross of a very blue H. sieboldiana x H. longipes with heart shaped leaves. |
From the American Hosta Society Registry record.
Parentage
- Pod parent: (H. sieboldiana x H. 'One Man's Treasure') — H. ‘One Man's Treasure’
- Pollen parent: open pollinated
Similar cultivars
Other registered hostas in the same AHS section class (III-2, medium size):
- H. ‘Purple Rain’ (2008)
- H. ‘Catherine Ann’ (1999)
- H. ‘Bruce's Blue’ (1991)
- H. ‘Linde’ (1987)
- H. ‘Blue Buns’ (2007)
- H. ‘Blue Genes’ (2007)
Related guides
Registration data: AHS Registry #5492. How we check this data.