Water Senegalia polyacantha regularly during the growing season, ensuring the soil dries slightly between waterings. Reduce watering in winter to prevent waterlogging.

Established trees are relatively drought-tolerant but benefit from occasional deep watering during prolonged dry spells. Monitor soil moisture to avoid over or under-watering.

Prune Senegalia polyacantha primarily to shape the tree, remove dead, damaged, or crossing branches, and improve air circulation. Light pruning can be done in late winter or early spring before new growth begins.

For shaping, minimal intervention is best to maintain its natural form.

Propagate Senegalia polyacantha from seeds, which often require scarification or hot water treatment to break dormancy. Cuttings can also be taken from semi-hardwood in summer, though rooting can be challenging.

Grafting is another method for specific cultivars.

Repotting is generally not a primary concern for established Senegalia polyacantha trees, as they are best left undisturbed. Young plants grown in containers may require repotting every 2-3 years into a slightly larger pot as they outgrow their current one, typically in spring.