H. ‘Flemish Sky’

Hosta 'Flemish Sky'
Illustration: The Hosta Farm Editorial Team.

Hosta ‘Flemish Sky’ is a registered cultivar () .

Year registered2004
Section classIV-2 (Small)

Overview

Registered in 2004 from unknown parentage, 'Flemish Sky' is a small hosta distinguished by its intense, clear light blue-green foliage. The leaves are broadly ovate with flat bases, lightly cupped and moderately wavy, bearing a glaucous bloom on both surfaces and slightly rippled margins.

In the Garden

This cultivar forms a compact, mound-like clump reaching 8.25 inches (21 cm) in height and 15.75 inches (40 cm) in diameter, with a moderate growth rate. It performs best in partial to full shade, where its blue coloration is most pronounced. The small size makes it suitable for rock gardens, troughs, or the front of shaded borders, where it pairs well with ferns, heucheras, or other small woodland perennials.

Care Notes

Provide consistent moisture, especially during dry periods, and apply a balanced slow-release fertilizer in early spring as new growth emerges. Like most hostas, it is susceptible to slug and deer damage; monitor regularly and take protective measures if needed.

Size and leaf

Clump height8.25 in (21 cm)
Clump width15.75 in (40 cm)
Leaf length4.7 in (11.9 cm)
Leaf width2.75 in (7 cm)
Vein pairs8
Leafintensely blue green slightly rippled margins; glaucous bloom on top; glaucous bloom underneath; lightly cupped and moderately wavy
Flower scape height12–19.5 in (30.5–49.5 cm)
Notable characteristicsclear light blue color

From the American Hosta Society Registry record.

Parentage

Registered cultivars that list Hosta ‘Flemish Sky’ as a parent:

Similar cultivars

Other registered hostas in the same AHS section class (IV-2, small size):

Related guides

Registration data: AHS Registry #1813