'Polārzvaigzne'

Flowers: white, with bright yellow spots, flowers have a gentle, pleasant fragrance

Leaves: deciduous, leaves turn red in autumn 

Height: 2.8 m (in 30 years)

Width: 2.5 m (in 30 years)

Hardiness: very good (-30°C)

Growing: In sun or partial shade, in acidic (pH 4.5-5.5), moderately moist, loose, rich in humus and permeable soil