Anadenanthera macrocarpa prefers consistently moist soil during its active growth phase, but avoid waterlogging. Reduce watering significantly during dormancy in cooler months.

Allow the top few centimeters of soil to dry out between waterings for established plants. Ensure good drainage to prevent root rot.

Pruning is primarily for shaping, removing dead or damaged branches, and improving air circulation. It is best done in late winter or early spring before new growth begins. Avoid heavy pruning, as it can stress the tree.

Aim for a well-structured canopy by removing crossing or rubbing branches.

Propagation is typically achieved through seeds, which often require scarification or soaking to improve germination rates. Cuttings can be taken from semi-hardwood in summer, but are generally more difficult to root.

Grafting may also be employed for specific cultivars.

Young trees benefit from repotting every 1-2 years to refresh the soil and provide more space for root growth. As the tree matures, repotting becomes less frequent, perhaps every 3-5 years.

Use a well-draining potting mix and ensure the pot has adequate drainage holes.