Cavanillesia umbellata prefers infrequent watering. Allow the soil to dry out completely between waterings. Overwatering can lead to root rot, especially in its native arid or semi-arid habitat.

During prolonged dry periods, water sparingly to maintain minimal soil moisture.

Pruning is generally not required for Cavanillesia umbellata unless there is a specific need to remove dead, damaged, or crossing branches. If pruning is necessary, use clean, sharp tools and make cuts just above a node.

Avoid excessive pruning as it can stress the plant.

Propagation is typically done from seeds. Soak seeds in warm water for 24-48 hours before sowing in a well-draining soil mix. Maintain consistent warmth and moisture until germination occurs, which can be sporadic.

Cuttings are less common and can be difficult to root.

Repot Cavanillesia umbellata only when absolutely necessary, usually every 2-3 years, or when the plant becomes root-bound. Use a well-draining potting mix, such as a cactus or succulent blend.

Handle the caudex with care during repotting to avoid damage.