H. ‘Cosmic Sensation’

AI-generated watercolor illustration of Hosta 'Cosmic Sensation' (not a photograph)
AI-generated watercolor illustration by The Hosta Farm — not a photograph of this cultivar. How we use images

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

Year registered2010
Section classI-7 (Giant)

Overview

Registered in 2010, Hosta 'Cosmic Sensation' is a giant-sized cultivar resulting from the cross (H. 'Fudge Ripple' × H. 'Cosmic Hippie') pollinated by H. 'Geneva Remembrance'. It is visually distinguished by its very large, nearly round, medium green leaves with flat margins that are streaked greenish yellow to creamy white, combined with a lightly cupped and moderately corrugated texture.

In the Garden

With a mature spread of 44 inches (111.8 cm) and height of 28 inches (71.1 cm), 'Cosmic Sensation' forms a dense, mound-like clump at a moderate growth rate. It is best sited in partial to dappled shade, typical for hostas, where its substantial foliage can develop without scorch. Its large, rounded leaves make it a suitable specimen or accent plant in the middle to back of a shaded border, pairing well with ferns, astilbes, and other shade-tolerant perennials.

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 the large, lush leaves are attractive to both pests.

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 height28 in (71.1 cm)
Clump width44 in (111.8 cm)
Leaf length16 in (40.6 cm)
Leaf width14.5 in (36.8 cm)
Vein pairs16
Leafmedium green, streaked greenish yellow to creamy white flat margins; slightly shiny on top; slightly shiny underneath; lightly cupped, moderately corrugated
Flower scape height34–36 in (86.4–91.4 cm)
Notable characteristicslarge rounded leafed breeder

From the American Hosta Society Registry record.

Parentage

Similar cultivars

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

Related guides

Registration data: AHS Registry #1205. How we check this data.