This non-registered cultivar from Japan is a medium size
hosta about 17 inches high by 45 inches wide with medium
green foliage. The leaves are slightly corrugated,
ovate, flat and have 5 pairs of veins. It bears lavender
flowers in August followed by viable seeds.
"Oga
Gibōshi, the "hosta from Oga" is purported to be from
Oga Hanto (Oga Peninsula) in Akita Prefecture of
northwestern Honshu. It is a
H.
sieboldii ×
H.
rectifolia intermediate."
According to
The Hostapedia by
Mark Zilis (2009), "...becomes an attractive, fairly dense mound of green foliage
that is topped by a good show of lavender flowers in
August. Its origins are obscure. The name looks like,
but is not, a Japanese common name for a hosta species
or cultivar."