This form of the species
H. montana is a non-registered cultivar was found near Mt Fuji
Japan. The large size mound is about 21 inches high with a spread of 50
inches. Its leaves are ovate, moderately wavy, slightly
corrugated with good substance. Very pale lavender flowers bloom
The Hostapedia by Mark Zilis (2009), "...bears typical H. montana foliage with an
unusual, mottled green and white edge. The flowers, though, are
more densely clustered that most H. montana-types."