A cross between
Hosta montana
macrophylla and H. 'Sea Drift', this cultivar was
jointly registered by
William Brincka
and Olga
Petryszyn in 1991. It is a giant sized (33 inches high), semi-upright mound of deeply lobed, dark green foliage.
The leaves are heavily rippled, deeply veined and has thick
substance.
Pale lavender flowers with whitish bracts bloom in July.
According to
The Hostapedia by
Mark Zilis
(2009), "Anyone who lusts after piecrust-margined hostas
should put 'Niagara Falls' at the top of their list. The large
mound size and vase-shaped habit accentuate this trait. It also
rates as one of Olga Petryszyn's finest introductions and is a
testament to her careful selection process."

Similar cultivars include H. 'Manhattan' and H. 'Sea Drift'.
Sports include H. 'Lightning Ridge' and H. 'War Paint'.
Seedlings include H. 'Hoosier Dome' and H. 'King Lizzard'.