Water regularly, especially during dry periods, ensuring the soil remains consistently moist but not waterlogged. Reduce watering frequency in winter. Check soil moisture by feel; water when the top 2-3 cm feels dry.

Good drainage is crucial to prevent root rot.

Prune to shape the tree and remove dead, damaged, or crossing branches. The best time to prune is during late winter or early spring before new growth begins.

Make clean cuts just outside the branch collar to promote healing. Avoid removing more than 25% of the canopy at once.

Propagate primarily through grafting, typically in late winter or early spring. Seed propagation is possible but can be slow and may not produce true-to-type offspring.

Collect seeds in autumn and sow them after a period of stratification.

Young Acer robustum may require repotting every 2-3 years, while mature specimens can be repotted less frequently. Repot in early spring before bud break. Use a well-draining potting mix.

Ensure the new pot is only slightly larger than the current one.