variety of the species from
Japan is noted for growing in moist, swampy regions
which was first identified by
Dr. Fumio Maekawa around 1940.
It is a miniature size hosta only growing about 4
inches high with a spread of around 15 inches. The medium green leaves are very
narrowly elliptic, shiny on top and have smooth texture. Pale lavender flowers
with 4 or 5 blossoms per scape bloom in September.
The Hostapedia by Mark Zilis (2009), "Its strap-like foliage appears much closer to that of a
Liriope than a hosta...The flowers, too, set this plant apart from other hostas. It only
produces 4-5 flowers per scape, making for one of the shortest hosta blooming
Mikiko Lockwood in an article on The Hosta Library titled,
A Little About Japanese Hosta Terms defines the term hosoba
as narrow leaf and the term mizu as water, 'Mizu Gibōshi' or