The Hostapedia by Mark Zilis (2009), "H. 'Hatsushimo' = H. 'Hatsushimo
Nishiki' or H. montana 'Hatsushimo Nishiki'."
Mikiko Lockwood in an article on The Hosta Library titled,
A Little About Japanese Hosta Terms defines the term nishiki as brocade (rich-colored woven fabric) i.e.
something colorful and beautiful.