Water thoroughly when the potting medium is almost dry, typically once every 7-10 days during active growth.

Reduce watering significantly during the cooler, dormant period, allowing the medium to dry out more between waterings to prevent root rot. Avoid letting the plant sit in standing water.

Pruning is generally minimal for Polystachya greatrexii. Remove spent flower spikes and any dead or yellowing leaves as needed.

This helps maintain the plant's aesthetic appeal and directs energy towards new growth and flowering. Sterilize pruning tools between cuts.

Propagation is primarily achieved through division of mature pseudobulbs. When the plant becomes overcrowded and is repotted, carefully separate sections with at least 2-3 pseudobulbs and healthy roots.

Allow the cut surfaces to callus before repotting.

Repot every 2-3 years or when the potting medium begins to break down, usually after flowering. Use a well-draining orchid mix, such as bark and perlite. Ensure the pot has adequate drainage holes.

Repotting is best done in spring as new growth emerges.