Water Diospyros mannii regularly, keeping the soil consistently moist but not waterlogged, especially during its active growing season.

Reduce watering slightly in cooler months, allowing the top few centimeters of soil to dry out between waterings. Ensure good drainage to prevent root rot.

Prune Diospyros mannii in late winter or early spring to shape the tree and remove any dead, damaged, or crossing branches. Focus on maintaining an open canopy for good air circulation and fruit production.

Avoid excessive pruning, as it can reduce fruiting.

Diospyros mannii can be propagated from seeds, which require a period of stratification. Grafting is also a common and effective method for ensuring desirable fruit characteristics.

Cuttings are generally less successful for this species.

Repot young Diospyros mannii plants every 2-3 years in spring. Mature trees are best left undisturbed or repotted infrequently. Use a well-draining potting mix and a slightly larger pot to accommodate root growth.

Ensure the root ball is not compacted.