This hybrid of H. 'Ruffles'
H. 'Sieboldiana' was registered by
Minks of Minnesota in 1980. The
giant size plant grows to about 30 inches high by 75 inches
wide. Its moderately rippled, medium green foliage has moderate
corrugation and thick substance. The near white flowers bear
blooms in dense clusters.
The Hostapedia by Mark Zilis (2009), "...has not achieved the popularity that it deserves. In
the garden, it forms a magnificent, wide mound of neatly rippled