H. ‘Powder Keg’
Hosta ‘Powder Keg’ is a registered cultivar () .
| Year registered | 2010 |
|---|---|
| Section class | II-7 (Large) |
Overview
A sport of *Hosta* 'Powder Blue' registered in 2010, 'Powder Keg' is a large, mound-forming cultivar distinguished by its blue-green leaves with creamy white margins that exhibit irregular green streaks and mottled areas. The leaf surface carries a glaucous bloom on both sides, and the broadly ovate, cordate-based blades are moderately wavy and corrugated, with 14 to 16 pairs of veins.
In the Garden
'Powder Keg' forms a substantial mound reaching 22 inches (55.9 cm) in height and 45 inches (114.3 cm) in diameter, with a slow growth rate. It performs best in partial to full shade, as is typical for blue-leaved hostas, where its glaucous foliage color is best preserved. The creamy white variegation and mottling provide contrast when planted near darker-leaved perennials such as ferns or *Heuchera*.
Care Notes
Provide consistent moisture, especially during dry periods, and apply a balanced fertilizer in early spring as new growth emerges. Slugs and deer may damage the foliage; monitor regularly and employ control measures if needed.
Size and leaf
| Clump height | 22 in (55.9 cm) |
|---|---|
| Clump width | 45 in (114.3 cm) |
| Leaf length | 10 in (25.4 cm) |
| Leaf width | 8 in (20.3 cm) |
| Vein pairs | 16 |
| Leaf | blue-green with creamy white and green streaks and mottled areas flat margins; glaucous bloom on top; glaucous bloom underneath; moderately wavy, moderately corrugated |
| Flower scape height | 24–30 in (61.0–76.2 cm) |
| Seasonal colour change | streaks and mottled areas creamy yellow early in the growing season |
| Notable characteristics | streaked and mottled, white and blue green foliage |
From the American Hosta Society Registry record.
Parentage
- Sport parent: Sport of H. 'Powder Blue' — H. ‘Powder Blue’
Similar cultivars
Other registered hostas in the same AHS section class (II-7, large size):
- H. ‘Quesadilla’ (2010)
- H. ‘Cosmic Sister’ (2006)
- H. ‘Justice’ (2003)
- H. ‘Cosmic Breeder’ (2010)
- H. ‘Cosmic Brew’ (2010)
- H. ‘Cosmic Delight’ (2010)
Related guides
Registration data: AHS Registry #4424