Propagation
Stratify seeds for 2 to 3 months during winter in peat and then sow seeds in pots and place them in a cold frame.
Graft on to seedlings of Fraxinus oxycarpa.

Culture
Generally these trees require little pruning and the crown may be raised by the removal of appropriate branches back to the collar.

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

Botanic information
Leaf: The imparipinnate leaves have 7 to 13 lanceolate leaflets that are up to 80mm (3in) long. The leaflets upper surface is glossy and the glabrous underside is matt green. During autumn they turn claret-red before falling. The sessile buds are brown with 2 to 3 pairs of scales.

Flower: The tree is dioecious and the small apetalous flowers are arranged in a panicle at the end of branches appearing during late spring.

Fruit: The oval to oblong samara is yellow to brown and appears in upright clusters during autumn.