H. ‘Conundrum’
Hosta ‘Conundrum’ is a registered cultivar () .
| Year registered | 2012 |
|---|---|
| Section class | I-2 (Giant) |
Overview
Registered in 2012 with parentage unknown, 'Conundrum' is a giant hosta distinguished by its exceptionally large, broadly ovate blue-green leaves with cordate bases and slightly rippled margins. The leaves bear a glaucous bloom on both surfaces and are held on long, strong, erect petioles, forming a substantial mound.
In the Garden
'Conundrum' reaches 60 inches (152.4 cm) in diameter and 40 inches (101.6 cm) in height, with a moderate growth rate. It is best sited in partial to full shade, where its blue-green foliage retains its glaucous quality. The large scale makes it suitable as a specimen or focal point in woodland borders and shade gardens; it pairs well with ferns, brunnera, and other broad-leaved perennials. Its size precludes container cultivation.
Care Notes
Water regularly to maintain consistent soil moisture, particularly during dry periods. Apply a balanced, slow-release fertilizer in early spring as new growth emerges. The thick leaves show moderate slug resistance, though protection may be needed in damp conditions. Deer may browse young foliage.
Size and leaf
| Clump height | 40 in (101.6 cm) |
|---|---|
| Clump width | 60 in (152.4 cm) |
| Leaf length | 16.5 in (41.9 cm) |
| Leaf width | 14.5 in (36.8 cm) |
| Vein pairs | 16 |
| Leaf | medium blue-green with slightly rippled margins; glaucous bloom on top; glaucous bloom underneath; lightly wavy overall with long, strong, erect petioles. |
| Flower scape height | 55–65 in (139.7–165.1 cm) |
| Seasonal colour change | becomes medium green |
| Notable characteristics | Handsome large broad leaves on large plant, long pod scapes. |
From the American Hosta Society Registry record.
Similar cultivars
Other registered hostas in the same AHS section class (I-2, giant size):
- H. ‘Blue Mammoth’ (2010)
- H. ‘Coal Miner’ (2010)
- H. ‘Groo Bloo’ (2010)
- H. ‘Mike’ (2010)
- H. ‘So Big’ (2010)
- H. ‘Midnight Dream’ (2015)
Related guides
Registration data: AHS Registry #1151