H. ‘Gosan Sunproof’

Hosta ‘Gosan Sunproof’ is a registered cultivar (2009) .

Year registered	2009
Section class	II-1 (Large)

Overview

Registered in 2009, this large hybrid combines *Hosta hypoleuca* with a cross of *H. longipes* var. *latifolia* and *H. montana*. 'Gosan Sunproof' is visually distinguished by its light green leaves that shift to greenish gray in sun-exposed margins, forming a broad, mound-like clump.

In the Garden

'Gosan Sunproof' is notable for its tolerance of direct afternoon sun, provided soil moisture is maintained, making it suitable for sites with more light than typical hosta-growing zones. Mature plants reach 24 inches (61 cm) in height and spread to 60 inches (152 cm) in diameter, with scapes rising 30 to 36 inches (76 to 91 cm). Its large, ovate, lightly cupped leaves (13 inches long, 8 inches wide) with 12 to 14 vein pairs pair well with ferns, astilbes, or shade-tolerant grasses in mixed borders.

Care Notes

Maintain consistently moist soil, especially in sunnier exposures; water during dry periods. Apply balanced fertilizer in early spring as growth emerges. Slugs may damage foliage; deer typically avoid this cultivar.

Size and leaf

Clump height	24 in (61 cm)
Clump width	60 in (152.4 cm)
Leaf length	13 in (33 cm)
Leaf width	8 in (20.3 cm)
Vein pairs	14
Leaf	ovate lightly cupped, smooth
Flower scape height	30–36 in (76.2–91.4 cm)
Notable characteristics	This hybrid has been growing in Tucker, GA in full sun from Noon until sunset and will withstand direct sun as long as the soil is moist.

From the American Hosta Society Registry record.

Parentage

Pod parent: H. hypoleuca
Pollen parent: (H. longipes var. latifolia x H. montana)

Registered cultivars that list Hosta ‘Gosan Sunproof’ as a parent:

H. ‘Envy’ (seedling (pollen parent))
H. ‘Pit Bull’ (seedling (pollen parent))

Similar cultivars

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

Related guides

Registration data: AHS Registry #2242