Water Manchurian Ash regularly, especially during dry periods, ensuring the soil remains consistently moist but not waterlogged. Reduce watering in winter when the plant is dormant.

Deep watering is preferred over frequent shallow sprinklings to encourage strong root development.

Prune Manchurian Ash to shape the tree, remove dead or diseased branches, and improve air circulation. The best time for major pruning is late winter or early spring before bud break.

Light pruning can be done throughout the year to remove unwanted growth.

Manchurian Ash can be propagated from seed, which requires a period of cold stratification. It can also be propagated from cuttings taken in late spring or early summer, but this is generally less successful.

Grafting is also an option for specific cultivars.

Young Manchurian Ash trees may require repotting every 2-3 years to replenish soil and provide more space for root growth. Mature trees are best left undisturbed.

Repotting should ideally be done in early spring before the growing season begins.