Originated in Japan, this non-registered cultivar is a sport of
H. sieboldii. It is a small size hosta which
grows to about 9 inches in height with a spread of
around 22 inches. The foliage is green with white medial
(center) variegation and has thin substance.
Mikiko Lockwood in an article on The Hosta Library titled,
A Little About Japanese Hosta Terms defines the term shirobuchi as white edge(d)
and the term koba as small leaf, 'Koba Gibōshi' or