'Ausma'

Flowers: orange, lightly scented

Leaves: deciduous

Height: 2.6 m (in 20 years)

Width: 2.8 m (in 20 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