Guarea costata prefers consistently moist soil but dislikes waterlogged conditions. Water thoroughly when the top 2-3 cm of soil feels dry to the touch. Reduce watering slightly during cooler months to prevent root rot.

Ensure good drainage to avoid issues.

Prune Guarea costata to maintain its shape and remove any dead, damaged, or crossing branches. Light pruning can be done anytime to encourage bushier growth.

For more significant shaping, prune in late winter or early spring before new growth begins.

Propagation of Guarea costata is typically done through seeds sown in a well-draining, moist medium. Stem cuttings can also be taken from mature plants, treated with rooting hormone, and planted in a suitable substrate.

Patience is key for successful germination and rooting.

Repot Guarea costata every 2-3 years, or when it becomes root-bound. Use a well-draining potting mix. Choose a pot that is only slightly larger than the current one. Repotting is best done in spring as new growth begins.