H. ‘Cosmic Brew’

Hosta 'Cosmic Brew'
Illustration: The Hosta Farm Editorial Team.

Hosta ‘Cosmic Brew’ is a registered cultivar () .

Year registered2010
Section classII-7 (Large)

Overview

Registered in 2010, 'Cosmic Brew' is a large hosta cultivar resulting from a cross between *Hosta* 'Cosmic Hippie' (pod parent) and *Hosta* 'Ma Breeder' (pollen parent). Its most distinctive visual feature is the blue-green leaf center with margins that transition from dark blue-green to pale yellow, creating a pronounced, slightly rippled border.

In the Garden

'Cosmic Brew' forms a mound-shaped clump reaching 23 inches (58.4 cm) in height and 42 inches (106.7 cm) in diameter, with a moderate growth rate. It performs best in partial to full shade, typical for blue-leaved hostas, where the leaf color remains truest. The large, broadly ovate leaves with cordate bases, moderate corrugation, and light cupping make this cultivar suitable as a specimen or in mixed shade borders; its substantial size precludes container use.

Care Notes

Provide consistent moisture, particularly during dry periods, and apply a balanced fertilizer in early spring as new growth emerges. Standard slug and deer precautions are advisable, as both pests may damage the foliage.

Size and leaf

Clump height23 in (58.4 cm)
Clump width42 in (106.7 cm)
Leaf length11 in (27.9 cm)
Leaf width8 in (20.3 cm)
Vein pairs17
Leafdark blue, streaked slightly blue-green, medium blue-green, to pale yellow slightly rippled margins; slightly shiny on top; dull underneath; lightly cupped, moderately folded, moderately corrugated
Flower scape height26–30 in (66.0–76.2 cm)
Notable characteristicsnice dark colors

From the American Hosta Society Registry record.

Parentage

Similar cultivars

Other registered hostas in the same AHS section class (II-7, large size):

Related guides

Registration data: AHS Registry #1171