H. ‘Magnificent Obsession’
Hosta ‘Magnificent Obsession’ is a registered cultivar () .
| Year registered | 1999 |
|---|---|
| Section class | I-7 (Giant) |
Overview
Registered in 1999, 'Magnificent Obsession' is a giant hosta resulting from a cross between Hosta 'Galaxy' (pod parent) and Hosta hypoleuca (pollen parent). This cultivar is visually distinctive for its exceptionally large, blue-green leaves that reach nearly 14 inches in length and 12 inches in width, with slightly rippled margins and a glaucous bloom on the undersides.
In the Garden
'Magnificent Obsession' forms an upright, fast-growing clump reaching 32 inches in height and 51 inches in diameter, making it suitable as a specimen or focal point in shaded to partly shaded borders. Its substantial leaves pair well with ferns, astilbes, and other shade-tolerant perennials that contrast in texture and scale. The plant's large size and rapid growth rate make it less suited for containers and better placed in open garden beds where it can spread freely.
Care Notes
Provide consistent moisture, especially during dry periods, and apply a balanced fertilizer in early spring as new growth emerges. Like most large-leaved hostas, this cultivar is susceptible to slug and deer damage and may require protective measures in areas where these pests are prevalent.
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 | 32 in (81.3 cm) |
|---|---|
| Clump width | 51 in (129.5 cm) |
| Leaf length | 13.75 in (34.9 cm) |
| Leaf width | 12 in (30.5 cm) |
| Vein pairs | 13 |
| Leaf | medium green streaked slightly rippled margins; slightly shiny on top; glaucous bloom underneath |
| Flower scape height | 32–39 in (81.3–99.1 cm) |
From the American Hosta Society Registry record.
Parentage
- Pod parent: H. 'Galaxy' — H. ‘Galaxy’
- Pollen parent: H. hypoleuca
Similar cultivars
Other registered hostas in the same AHS section class (I-7, giant size):
- H. ‘Niagara on the Lake’ (2003)
- H. ‘Northern Mystery’ (2009)
- H. ‘Galaxy’ (1987)
- H. ‘Final Answer’ (2000)
- H. ‘Kiwi Milky Way’ (2000)
- H. ‘Super Star’ (2000)
Related guides
Registration data: AHS Registry #3600. How we check this data.