Water Gomphocarpus cancellatus moderately when the top 2-3 cm of soil feels dry. Avoid waterlogging, as this can lead to root rot.

Reduce watering significantly during winter dormancy, allowing the soil to dry out more between waterings.

Prune Gomphocarpus cancellatus in early spring before new growth begins. Remove any dead, damaged, or crossing branches. Light pruning can also be done after flowering to shape the plant and encourage bushier growth.

Deadheading spent flowers can prolong blooming.

Propagate Gomphocarpus cancellatus from seeds sown in spring or from stem cuttings taken in late spring or early summer. Seeds germinate best in warm, moist conditions.

Cuttings should be rooted in well-draining potting mix and kept humid until established.

Repot Gomphocarpus cancellatus every 2-3 years or when it becomes root-bound, preferably in spring. Use a well-draining potting mix, such as a cactus or succulent blend.

Choose a pot only slightly larger than the current one to avoid overwatering issues.