This is a green leaved
tissue culture sport of H.
'Masquerade' that was introduced by
Q&Z Nursery
(Mark Zilis) in 2003. It forms a medium sized (11 inches high)
mound and displays deep purple flowers from late June into July.
According to
The Hostapedia by Mark Zilis
(2009), this cultivar "...makes a much
better garden plant than the white-centered 'Masquerade'. It can
be used as a low ground cover or edger. Much to my surprise, it
also exhibits good sun tolerance."
Similar cultivars include H. 'Alpine Dreams', H. 'Pearl
Buttons' and H. 'Venessa'.