In 2003, Peter and Jean Ruh of Ohio registered this cultivar which was purchased from
Germany and named for fern specialist, Reginald Kaye, an English
nurseryman. The medium
size (16 inches high) mound has puckered leaves with a shallow lobe at the base.
Dense clusters of flowers bloom in August.
The Hostapedia by Mark Zilis (2009), says that this plant falls into a category of
"cultivars that exhibit many
Tardiana traits but are
not a part of Eric Smith's original group...I've seen 'Reginald Kaye' in gardens since the
early 1980s and it has always impressed me for its good blue
color and thick substance."