Guatemalan Fir prefers consistently moist soil but dislikes waterlogged conditions. Water deeply when the top 2-3 cm of soil feels dry. Reduce watering in cooler months. Ensure good drainage to prevent root rot.

Overwatering can be detrimental to its health.

Prune primarily to shape the tree or remove dead, damaged, or crossing branches. Perform pruning in late winter or early spring before new growth begins.

Avoid heavy pruning, as this species can be sensitive to significant cuts. Remove any weak or awkwardly placed branches.

Propagation is typically done through seeds, which require stratification. Sow seeds in a well-draining mix and keep moist. Cuttings are less common and can be difficult to root.

Patience is key, as germination and establishment can be slow.

Repot young Guatemalan Firs every 2-3 years, or when root-bound. Use a well-draining potting mix formulated for conifers. Choose a pot that is slightly larger than the current one.

Repot in early spring before the growing season begins. Handle the root ball gently.