Propagation
Stratify seeds for 2 to 3 months during winter in peat and sow seeds in pots then place them in a cold frame to germinate. 

Note:
Care should be taken when selecting a sight as the tree has vigorous roots that can lift concrete and block drains.

Botanic information
Leaf: The leaves have 5-pointed lobes and the slender reddish petiole up to 120mm (4¾in) long. The underside of the leaf is silvery white and is a feature of the plant. The reddish brown buds are imbricate, flattened-ovoid up to 6mm (¼in) long.

Flower: The upright corymb of tiny yellowish green apetalous flowers appears before the leaves in early spring. The globose buds are imbricate and appear in a compact cluster.

Fruit: The fruit stem is up to 50mm (2in) long and the spreading samara are in pairs and joined at the base with membranous twisted wings.

General information on pruning Acer species 
The Maples normally do not require regular pruning apart from damaged, diseased or dead wood removal and this should be carried out from autumn to winter. Pruning in late winter or spring may result in bleeding of the sap and should be avoided. Remove reverted branches in variegated trees and clean up split bark with a sharp knife and allow natural healing.