Pacific Coast Mahogany prefers consistently moist soil but can tolerate short dry spells. Water deeply when the top 2-3 cm of soil feels dry. Avoid waterlogged conditions, as this can lead to root rot.

Reduce watering slightly during cooler, dormant periods.

Pruning is mainly for shaping and removing dead or damaged branches. For young trees, formative pruning can establish a strong structure.

Mature trees benefit from light pruning to maintain form and improve air circulation. Prune in late winter or early spring before new growth begins.

Propagation is typically done from seeds, which require scarification and warm temperatures for germination.

Cuttings can also be taken, but successful rooting may be challenging and often requires specific hormonal treatments and controlled conditions. Patience is key with propagation.

Young trees may require repotting every 2-3 years to refresh soil and provide more space for root growth. Use a well-draining potting mix.

For mature trees, repotting is rarely necessary unless signs of root-bound conditions appear, such as reduced vigor or poor drainage.