Agathis ovata prefers consistently moist soil but dislikes waterlogged conditions. Water thoroughly when the top inch of soil feels dry.

Reduce watering slightly during cooler, dormant periods, but never allow the soil to dry out completely. Ensure good drainage to prevent root rot.

Pruning is generally not required for Agathis ovata, as it forms a natural, attractive shape. If necessary, prune to remove dead, damaged, or crossing branches. Perform pruning in late spring or early summer.

Avoid heavy pruning, which can stress the plant.

Propagation is typically done from seeds, which require stratification. Sow seeds in a well-draining seed-starting mix and keep them consistently moist and warm. Germination can be slow and irregular.

Cuttings are difficult to root and are not a common propagation method.

Repot young Agathis ovata plants every 2-3 years, or when they become root-bound, preferably in spring. Use a well-draining potting mix, such as a blend of peat, sand, and loam.

Ensure the new pot has adequate drainage holes. Avoid disturbing the root ball excessively.