Propagation
Sow fresh seeds from autumn to winter outdoors.

Botanic information
Leaf: The leaves are broad-ovate with 3-pointed lobes and a reddish petiole. During autumn the leaves turn yellow-orange to crimson before falling.
The blunt buds are glabrous up to 12mm (½in) long with 2-scales, valvate and the terminal bud is longer than the lateral buds, enclosed in 2-red scales and prominently keeled.

Flower: There are up to 25 tiny greenish crateriform flowers that are arranged in a pendant raceme that is up to 100mm (4in) long and appear during early summer.

Fruit: The samara appear in pairs and are joined at the base and have membranous wings that are pale red, pendant and are dispersed by wind.

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.