This seedling of H. 'Katsuragawa Beni' × unknown grows to about 12 inches in height with a width of 20 inches. The bright red color of the petioles carries up into the leaves. It bears purple flowers in mid-summer.

Mikiko Lockwood in an article on The Hosta Library titled, A Little About Japanese Hosta Terms defines the term beni as red or rouge and the the term -gawa or -kawa as river.