'Ilma'
Flowers: purple-pink, with dark purple-red spots
Leaves: evergreen
Height: 3 m (in 20 years)
Width: 3.5 m (in 20 years)
Hardiness: good (-25°C)
Growing: In shade, in acidic (pH 4.5-5.5), moderately moist, loose, rich in humus and permeable soil