H. ‘Undertow’
Hosta ‘Undertow’ is a registered cultivar () .
| Year registered | 2012 |
|---|---|
| Section class | IV-1 (Small) |
Overview
Registered in 2012, Hosta 'Undertow' is a small, fast-growing cultivar resulting from a cross between H. 'Don Quixote' and H. 'Sea Octopus'. It is visually distinctive for its lance-shaped, medium green leaves with narrow, flat, pale margins that arch downward and curve back toward the clump center, a habit reflected in its cultivar name.
In the Garden
Reaching 10 inches (25.4 cm) in height and 30 inches (76.2 cm) in diameter, 'Undertow' forms a dense, mound-like clump suitable for the front of borders, rock gardens, or containers. Its small size and arching leaf habit make it an effective textural accent in partial to full shade, pairing well with ferns, tiarella, or other small hostas. The green scapes, with red bases, rise 15 to 20 inches (38.1 to 50.8 cm) above the foliage.
Care Notes
Provide consistent moisture, especially during establishment, and apply a balanced fertilizer in early spring as growth emerges. Typical hosta-growing zones apply; slug and deer damage are possible but less frequent on smaller, tougher-leaved cultivars.
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 | 10 in (25.4 cm) |
|---|---|
| Clump width | 30 in (76.2 cm) |
| Leaf length | 7 in (17.8 cm) |
| Leaf width | 2.5 in (6.4 cm) |
| Vein pairs | 6 |
| Leaf | medium green with .25 to .5in (0.6 to 1.3cm) wide, flat margins; dull on top; slightly shiny underneath |
| Flower scape height | 15–20 in (38.1–50.8 cm) |
| Notable characteristics | leaves arch and curve under and point back toward center of clump |
From the American Hosta Society Registry record.
Parentage
- Pod parent: H. 'Don Quixote' — H. ‘Don Quixote’
- Pollen parent: H. 'Sea Octopus' — H. ‘Sea Octopus’
Similar cultivars
Other registered hostas in the same AHS section class (IV-1, small size):
- H. ‘Urchin’ (2013)
- H. ‘Chocolate Mint’ (2014)
- H. ‘Green Bag’ (2014)
- H. ‘Devil's Poker’ (2009)
- H. ‘Midnight Ride’ (2004)
- H. ‘Nellie Grey’ (2002)
Related guides
Registration data: AHS Registry #5884. How we check this data.