Hosta ‘Rounded Corners’ is a highly collectible hosta hybridized by Ed Thaubald, originating from a cross of ‘Justice’ × open-pollinated seedling. This offering is OS (Originator’s Stock), meaning plants are sourced directly from the originator’s original stock and designated as OS only when verifiable.

This cultivar is appreciated for its strong, well-balanced growth and refined overall form. Plants develop into an attractive clump reaching approximately 18 inches tall and 36 inches wide, giving it a broad, grounding presence in the garden. True to its name, the foliage presents a pleasing, rounded look that contributes to a polished and intentional appearance in shaded borders and woodland settings.

An exceptionally rare introduction held by very few growers, ‘Rounded Corners’ is best suited for serious collectors seeking authentic originator material and cultivars with limited availability.

Plant Details

Botanical Name: Hosta ‘Rounded Corners’
Registration Status: Not specified
Hybridizer: Ed Thaubald
Parentage: ‘Justice’ × open-pollinated seedling
Size Category: Medium to Large
Mature Size: Approximately 18 inches tall x 36 inches wide
Growth Habit: Clumping perennial
OS (Originator’s Stock): Yes – sourced directly from the originator
RH Rating: RH5 (Extremely Rare – held by only a handful of collections)
Primary Interest: Ornamental foliage
Garden Use: Shaded borders, woodland gardens, collector hosta collections

Hosta Rounded Corners OS

Hosta Rounded Corners OS