H. ‘Pluto’
Hosta ‘Pluto’ is a registered cultivar () .
| Year registered | 2015 |
|---|---|
| Section class | II-2 (Large) |
Overview
Registered in 2015 from an open pollination of *Hosta* 'Rosedale Black Hole', 'Pluto' is a large, slow-growing cultivar distinguished by its intensely powder-blue spring foliage and deeply corrugated, nearly round leaves. The leaf blade is flat-margined, heavily cupped, and lightly folded, with a dull, blue-green surface on both sides.
In the Garden
'Pluto' reaches a mature clump diameter of 33 inches (83.8 cm) and a height of 22 inches (55.9 cm), with upright leaf habit. It is suitable for partial to full shade in typical hosta-growing zones. The bold, textured foliage pairs well with ferns, astilbes, or other shade perennials that contrast with its blue tones. Its large size makes it appropriate as a specimen or in the middle to back of a shaded border.
Care Notes
Provide consistent moisture, especially during dry periods, and apply a balanced fertilizer in early spring as new growth emerges. Like many large-leaved hostas, 'Pluto' may require protection from slugs and deer, though its corrugated surface may offer some resistance.
Size and leaf
| Clump height | 22 in (55.9 cm) |
|---|---|
| Clump width | 33 in (83.8 cm) |
| Leaf length | 11 in (27.9 cm) |
| Leaf width | 9 in (22.9 cm) |
| Vein pairs | 16 |
| Leaf | intensely blue-green flat margins; dull on top; dull underneath; deeply cupped, lightly folded, intensely corrugated |
| Flower scape height | 18–23 in (45.7–58.4 cm) |
| Seasonal colour change | gets darker as season progresses |
| Notable characteristics | intenselty powdered blue in Spring and corrugated leaves |
From the American Hosta Society Registry record.
Parentage
- Pod parent: H. 'Rosedale Black Hole' — H. ‘Rosedale Black Hole’
Similar cultivars
Other registered hostas in the same AHS section class (II-2, large size):
- H. ‘Blue Ripples’ (2009)
- H. ‘Blue Tips’ (2009)
- H. ‘Neptune’ (2006)
- H. ‘Queen of the Seas’ (2001)
- H. ‘Aksarben’ (1988)
- H. ‘Blue Rock’ (1986)
Related guides
Registration data: AHS Registry #4397