Water Brachychiton rupestris thoroughly when the top 5-10 cm of soil is dry. Allow the soil to dry out slightly between waterings, especially during cooler months.

Overwatering can lead to root rot, so ensure good drainage. Reduce watering significantly in winter.

Pruning is primarily for shaping and size management. Remove any dead, damaged, or crossing branches. Prune in late winter or early spring before new growth begins.

Heavy pruning can stimulate vigorous growth, but is generally not required for this species.

Propagation is typically done by seed. Seeds require scarification (nicking the seed coat) and soaking in warm water before sowing.

Alternatively, cuttings can be taken from semi-hardwood in summer, though this method can be more challenging and less reliable than seed propagation.

Repot Brachychiton rupestris every 2-3 years or when root-bound. Use a well-draining potting mix, such as a cactus or succulent blend. Repot in spring before the main growth period.

Choose a pot that is only slightly larger than the current one to avoid waterlogging.