'LU Rolands'
Flowering time: beginning of June
Flowers:
violet, with strong yellow-orange spots
Leaves: evergreen
Height: 2 m (in 20 years)
Width: 2 m (in 20 years)
Hardiness: good (-25°C)
Growing: In partial shade, in sour (pH 4,5-5,5), moderately moist, loose, rich in humus and permeable soil