Water Gomphocarpus abyssinicus thoroughly when the top 2-3 cm of soil feels dry. Allow excess water to drain away. It prefers consistently moist soil but can tolerate brief periods of drought once established.

Avoid waterlogging, which can lead to root rot.

Prune Gomphocarpus abyssinicus to maintain shape and encourage bushier growth. Remove spent flowers to prevent seed formation if desired.

Prune back by about one-third in late winter or early spring before new growth begins. Dead or damaged stems should be removed anytime.

Gomphocarpus abyssinicus can be propagated by seeds sown in spring or through stem cuttings taken in late spring or early summer. Seeds may require stratification.

Cuttings should be rooted in well-draining potting mix in a warm, humid environment.

Repot Gomphocarpus abyssinicus every 2-3 years, or when it becomes root-bound. Use a well-draining potting mix. Choose a pot that is only slightly larger than the current one.

Repot in spring, just before the active growing season begins, to minimize transplant shock.