H. ‘Saishu Jima’

Hosta 'Saishu Jima'
Photo © Wikimedia Commons contributor, CC

Hosta ‘Saishu Jima’ is a registered cultivar () , originated by P. Ruh.

Year registered2002
RegistrantP. Ruh
Section classV-1 (Miniature)

Overview

Registered in 2002 by P. Ruh, *Hosta* 'Saishu Jima' is a miniature variegated cultivar of unknown parentage. Its lance-shaped leaves display medium green, slightly rippled margins with a dull upper surface and very shiny underside, while the foliage is wavy and lightly twisted, contributing to a compact, mound-like habit.

In the Garden

'Saishu Jima' reaches a mature diameter of 13 inches (33.0 cm) and a height of 7 inches (17.8 cm), with a fast growth rate that makes it suitable for small spaces, rock gardens, or container culture. It performs best in partial to dappled shade, typical of most hostas, and pairs well with other miniature perennials such as small ferns or *Heuchera* cultivars. Its compact size and attractive green scapes, reaching up to 19 inches (48.3 cm), also make it an effective edging plant along pathways.

Care Notes

Provide consistent moisture during the growing season, applying a balanced fertilizer in early spring as new growth emerges. Like most hostas, 'Saishu Jima' may be susceptible to slug damage and deer browsing, so monitoring and protective measures are advisable in areas where these pests are prevalent.

Size and leaf

Clump height7 in (17.8 cm)
Clump width13 in (33 cm)
Leaf length3.5 in (8.9 cm)
Leaf width1.25 in (3.2 cm)
Leafmedium green slightly rippled margins; dull on top; very shiny underneath; wavy and lightly twisted
Flower scape height19 in (48.3 cm)
Notable characteristicssmall size; rapid growth; attractive flower; historic background

From the American Hosta Society Registry record.

Parentage

Registered cultivars that list Hosta ‘Saishu Jima’ as a parent:

Similar cultivars

Other registered hostas in the same AHS section class (V-1, miniature size):

Related guides

Registration data: AHS Registry #4916