Roystonea oleracea prefers consistently moist soil, especially when young. Water deeply when the top 2-3 cm of soil feels dry. Avoid waterlogged conditions, which can lead to root rot.

Mature palms are more drought-tolerant but benefit from regular watering during dry spells to maintain lush growth and fruit production.

Pruning is minimal for Roystonea oleracea. Remove only dead, brown, or damaged fronds. Cut them at the trunk, but avoid removing green fronds as they are essential for photosynthesis and energy production.

Do not 'tidy up' by removing healthy green fronds, as this stresses the palm and can hinder its growth.

Roystonea oleracea is primarily propagated by seed. Seeds should be fresh and sown in a warm, moist medium. Germination can be erratic, often taking several weeks to several months.

Seedlings require consistent warmth and humidity. It is not commonly propagated by other methods like division or cuttings.

Young Roystonea oleracea palms may require repotting every 1-2 years into a larger container as they grow. Use a well-draining potting mix.

Mature trees are best planted directly in the ground and do not require repotting. If a large potted specimen needs repotting, it's a significant task due to its size.