Water Vachellia karroo deeply but infrequently, allowing the soil to dry out completely between waterings. Young plants require more frequent watering to establish. Once mature, it is highly drought-tolerant.

Avoid waterlogging, especially in container cultivation, as this can lead to root rot.

Prune Vachellia karroo primarily to shape the tree or remove dead, damaged, or crossing branches. Light pruning can be done after flowering to maintain its form. Avoid heavy pruning, as it can be slow to recover.

Pruning is best undertaken in late winter or early spring.

Propagate Vachellia karroo from seeds, which often require scarification or hot water treatment to break dormancy. Cuttings can also be taken from mature wood in late summer, but these can be challenging to root.

Sow seeds indoors in spring or direct sow after the last frost.

Repot Vachellia karroo only when it becomes root-bound, typically every 2-3 years for young plants. Use a well-draining soil mix. This species dislikes root disturbance, so handle the root ball carefully.

Repotting is best done in spring before new growth begins.