H. ‘Thunder Boomer’
Hosta ‘Thunder Boomer’ is a registered cultivar () .
| Year registered | 2007 |
|---|---|
| Section class | II-2 (Large) |
Overview
Registered in 2007 as an open-pollinated seedling, 'Thunder Boomer' is an F2 cross derived from a very blue Hosta sieboldiana and H. longipes, with H. 'One Man's Treasure' as the pod parent. This large cultivar is visually distinctive for its broad, ovate, blue-green leaves with cordate bases, a heavy glaucous bloom on both surfaces, and lightly rippled, wavy margins.
In the Garden
'Thunder Boomer' forms an upright, moderate-growing clump reaching 18 inches (45.7 cm) in height and 38 inches (96.5 cm) in diameter. Its large, corrugated leaves—11 inches (27.9 cm) long and 8 inches (20.3 cm) wide—make it suitable as a specimen or accent in partial to full shade. It pairs well with ferns and other shade perennials but is not recommended for containers due to its mature size.
Care Notes
Provide consistent moisture, especially during dry periods, and apply a balanced fertilizer in early spring as growth emerges. Like most hostas, 'Thunder Boomer' is susceptible to slug damage and deer browsing; monitor and manage accordingly 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 | 18 in (45.7 cm) |
|---|---|
| Clump width | 38 in (96.5 cm) |
| Leaf length | 11 in (27.9 cm) |
| Leaf width | 8 in (20.3 cm) |
| Vein pairs | 13 |
| Leaf | medium blue-green slightly rippled margins; glaucous bloom on top; glaucous bloom underneath; lightly wavy, lightly corrugated |
| Flower scape height | 38–40 in (96.5–101.6 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 (II-2, large size):
- H. ‘Aksarben’ (1988)
- H. ‘Chief White Cloud’ (2007)
- H. ‘Choctaw’ (2007)
- H. ‘Indianapolis Blue’ (2007)
- H. ‘Iroquois’ (2007)
- H. ‘Pebbles’ (2007)
Related guides
Registration data: AHS Registry #5703. How we check this data.