H. ‘John Kulpa’
Hosta ‘John Kulpa’ is a registered cultivar () .
| Year registered | 1999 |
|---|---|
| Section class | III-6a (Medium) |
Overview
Registered in 1999, Hosta 'John Kulpa' is a sport of Hosta 'Seventh Heaven' distinguished by its blue-green leaf centers framed by wide, creamy white margins. The leaves are notably glossy on the upper surface with a glaucous bloom beneath, and the scapes produce creamy white flowers.
In the Garden
This medium-sized cultivar forms a dense, mound-like clump reaching 12 inches (30.5 cm) in height and 20 inches (50.8 cm) in diameter. It performs best in partial to full shade, where its variegated foliage remains most stable. With a slow growth rate, it suits border fronts, woodland gardens, or shaded containers. Its compact habit pairs well with ferns, heucheras, and other small to medium shade perennials.
Care Notes
Provide consistent moisture, especially during dry periods, and apply a balanced fertilizer in early spring as new growth emerges. Slugs may damage the foliage; monitor and control as needed. Deer typically avoid hostas but may browse young shoots in spring.
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 | 12 in (30.5 cm) |
|---|---|
| Clump width | 20 in (50.8 cm) |
| Leaf length | 8 in (20.3 cm) |
| Leaf width | 6 in (15.2 cm) |
| Vein pairs | 12 |
| Leaf | very shiny on top; glaucous bloom underneath |
| Flower scape height | 15–20 in (38.1–50.8 cm) |
From the American Hosta Society Registry record.
Parentage
- Sport parent: Sport of H. 'Seventh Heaven' — H. ‘Seventh Heaven’
Similar cultivars
Other registered hostas in the same AHS section class (III-6a, medium size):
- H. ‘Guacamole’ (1994)
- H. ‘Proud Peacock’ (2016)
- H. ‘Abiqua Hallucination’ (1999)
- H. ‘American Masterpiece’ (1999)
- H. ‘Ann Kulpa’ (1999)
- H. ‘Captain Kirk’ (1999)
Related guides
Registration data: AHS Registry #2894. How we check this data.