Water newly planted golden rain trees regularly until established. Once mature, they are drought-tolerant and prefer infrequent, deep watering, especially during dry periods.

Avoid overwatering, as this can lead to root rot. Allow the soil to dry out slightly between waterings.

Prune to shape the tree and remove any dead, damaged, or crossing branches. This can be done in late winter or early spring before bud break.

Light pruning can be done after flowering to improve structure and encourage reblooming in some cases. Remove any suckers from the base.

Propagation is typically done by seed, which requires stratification for best germination. Sow seeds in fall or stratify them in the refrigerator for several months before sowing in spring.

Grafting or cuttings are less common but can be used for specific cultivars.

Repotting is rarely necessary for established golden rain trees as they are best grown in their final location.

If a young tree becomes root-bound in a container, repot in spring to a slightly larger container using well-draining soil. Ensure the root ball is kept intact.