Propagation
Sow seed when ripe during autumn in pots or in a cold frame, germination takes up to 12 months. 

Botanic information
Leaf: The bright green leaves have 5-7 lobes that are sharply acuminate and a long slender petiole up to 120mm (4¼in) long. The base is slightly cordate and is up to 80mm (3⅛in) wide. During autumn the leaf turns pale golden yellow before falling.

Flower: The small cyathiform flowers are arranged in an erect axillary umbel up to 50mm (2in) long and appear with the new foliage in spring.

Fruit: The samara have wings that are spread at a wide angle, almost horizontal.

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.