Peltophorum dubium prefers consistently moist soil during its establishment phase. Once mature, it becomes more drought-tolerant, requiring watering only when the top few centimeters of soil feel dry.

Overwatering should be avoided to prevent root rot, especially in poorly draining conditions.

Pruning Peltophorum dubium is primarily for shaping, removing dead or crossing branches, and improving air circulation. The best time for major pruning is late winter or early spring before new growth begins.

Light trimming can be done after flowering to maintain form.

Propagation of Peltophorum dubium is typically done through seeds, which may require scarification or soaking to improve germination rates. It can also be propagated from cuttings, though this method is less common and may be more challenging to establish.

Repotting is generally only necessary for young Peltophorum dubium trees that have become root-bound in their containers. This is best done in early spring before active growth commences.

Use a well-draining potting mix and choose a pot only slightly larger than the current one.