John Clifford of Michigan registered this sport
of H. 'September Sun' in 2000. It forms a medium to large size mound
with pale lavender flowers that bloom from mid-July into August.
This cultivar is part of the "Clifford's
Series" of hostas.
The Hostapedia by Mark Zilis (2009), "In 2001 a number of nurseries
began offering this wide-margined version of 'September Sun' under the trade name H. POLAR MOON, though it is often listed as
a cultivar, i.e., H. 'Polar Moon'.