 Hans Hansen of Minnesota registered this
chemically induced
tetraploid
tissue culture sport of H. 'Stained Glass' in
2005 and
Shady Oaks Nursery of Minnesota received a U.S. patent
in 2006. The tetraploid nature of the plant allows it to have a
thicker leaf substance and a wider dark green margin than the
mother plant. Its flowers are pale lavender, fragrant and are
borne in August.
The New Encyclopedia of Hostas by
Diana
Grenfell (2009) states: "Increases rapidly. Must be divided frequently to
retain the balance between
variegation and the wide leaf
margins...Differs from its parent in having thicker
leaves with much wider leaf margins which entirely
changes the balance of the leaf colors."
 In an article in
The
Hosta Journal (2016 Vol. 47 No 2), the author
described this plant's flowers as having a "Strong" fragrance
compared to other hostas.
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 United States Patent: PP17295 (2006)
Abstract: A new cultivar of Hosta named
‘Cathedral Windows’, derived as a sport of ‘Stained
Glass’ and characterized by wide dark green margins and
bright yellow-green centers that intensify in color in
summer. ‘Cathedral Windows’ blooms in late July to late
August with nearly white flowers held above the foliage
on erect scapes.
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