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." It
was originated by
Dr. Ralph (Herb) Benedict of Michigan and registered by Rod Kuenster of Iowa in 2010.
'September White' forms a small size (10 inches high by 28 inches wide) mound of
medium blue-green foliage. The leaves are lightly cupped, ovate,
flat and has glaucous bloom on top. White, tubular flowers bloom from mid-August
Mark Zilis (2009)
continues, "Herb Benedict told me...probably descended from 'Dorset
Blue' or 'Blue Moon'...In
some gardens it has been mistakenly labeled 'White September'
and 'Blue September'...it grows very slowly."
Similar cultivars include H. 'Brother