Water deeply and consistently, especially during dry periods and the first few years after planting. Allow the soil to dry slightly between waterings. Reduce watering in winter.

Avoid waterlogged conditions, which can lead to root rot. Mature trees are more drought-tolerant but still benefit from occasional deep watering during prolonged dry spells.

Prune to shape the tree, remove dead, damaged, or crossing branches, and improve air circulation. The best time for major pruning is during the dormant season (late winter).

Light pruning can be done in summer to manage growth. Remove suckers from the base of the trunk promptly. Avoid heavy pruning of mature trees.

Juglans × intermedia is typically propagated by grafting or budding onto rootstock, often using seedlings of Juglans regia or Juglans nigra.

Seed propagation is possible but may not result in true-to-type offspring due to its hybrid nature. Grafting is preferred for reliable results and disease resistance.

Repotting is generally not applicable to Juglans × intermedia as it is a large tree. For container-grown specimens, especially young trees, repot every 2-3 years into a larger container. Use a well-draining potting mix.

Ensure the root ball is loosened slightly before placing it in the new pot, and water thoroughly after repotting.