Propagation
Pre-soak seeds in cool water for up to a week then sow during early spring and the seeds may require scarification.  
       
Hardwood cuttings should be selected from a good shaped tree or a male tree during winter and shield bud the cultivars. 
Aerial layering may be carried out on the lower branches.

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.

Note
Care should be taken when selecting a sight allowing ample room for it to grow as it has vigorous roots that can lift concrete and block drains.

Botanic information
Leaf: The mid green imparipinnate leaves have 3 to 7 leaflets that turn golden yellow during autumn before falling. The leaflet apex is acuminate and the petiole is slender. The cultivars, ‘Aero-marginatum' has leaves with yellow margins. 'Variegatum' has leaves with cream-white margins.

Flower: The green-yellow flowers are arranged in long pendulous  tassel-like raceme that develops just before leaves during spring. The male and female flowers appear on different trees (dioecious).

Fruit: The twin samara seeds are joined at the base and have membranous wings and appear at the end of the branches in weeping clusters. They fruit only occur on female trees.