This very large, upright-vase
shaped plant was formerly known as
H. montana 'Praeflorens'. It makes a striking display in the shade garden
and has its distinctive flowers which form just above the
foliage like others in the H. montana species.
W. George Schmid (1991) changed the name to
H. montana forma macrophylla.
A giant size (35 inches high by 75 inches wide) plant with a vase shaped form,
this cultivar has foliage with deeply impressed veins, deeply
lobed base and are slightly wavy with a long, thin tip. The
leaves have thick substance which helps them be resistant to
slug damage. It has the typical flowers for its species which
look unique in bud and open as very pale lavender flowers from late June into July.
The Hostapedia by Mark Zilis (2009), "Of all the green-leaved
H. montana forms,...macrophylla is most distinctive.
The arching, spreading mound...can both physically and mentally
dominate a shade garden."