Alex Malloy of New York registered this sport
of H. 'Flash Dance' in 2004. The leaves have a blue-green center
with a margin that starts out yellow but changes to creamy white
as the season progresses. This small size plant bears pale
lavender flowers in June.
The Hostapedia by Mark Zilis (2009), "Since 'Flash Dance' is a sport of 'Pacific Blue Edger',
'Little Boy Blue' is essentially a margined version of 'Pacific Blue Edger'."