Propagation
Sow seed when ripe in a prepared bed or stratify seeds in a moist sandy soil, then place in a shaded position. Seedlings should be transplanted the following year.

Take soft tip cuttings of non-flowering shoots during summer.

Sow fresh seed that is select from specimens with the best autumn foliage. 
Unwanted seedlings may be used as understocks for grafting cultivars.

General pruning information.
These trees require little pruning. Remove dead or damaged branches during summer and pruning during winter should be avoided as it can encourage silverleaf disease. Spring pruning may give rise to sap bleeding.

Botanic information
Leaf: The broad ovate to rhomboidal glabrous leaves are up to 60 mm (2⅜ in) wide and turn yellow during autumn. The margin is double serrated and the apex is acuminate. The petiole is up to 20mm (¾in) long and the base is truncate. The brownish black buds are imbricate, curved and pointed.

Flower: The slender pendulous male catkins appear during autumn and open in early spring with the new leaves. The upright female catkins are downy and up to 37mm (1½in) long and appear on a short stem. They disintegrate when producing seed in early summer.

Fruit: The catkin scales are deciduous from the main axil when releasing the winged nutlet. The seeds are viable but the plant may be reproduced vegetatively.