Water thoroughly when the potting medium is almost dry, typically once a week during the growing season. Reduce watering significantly during the dormant period in winter.

Ensure good drainage to prevent root rot, as Calanthe formosana dislikes constantly wet conditions.

Remove spent flower spikes at their base once blooming is finished to redirect the plant's energy into new growth and pseudobulb development. Trim any dead or yellowing leaves as needed throughout the year to maintain plant health and appearance.

Calanthe formosana is primarily propagated by division. Separate healthy pseudobulbs with at least two to three leaves and a good root system during repotting.

Plant them in suitable orchid compost and maintain slightly warmer, humid conditions until established.

Repot every two to three years, or when the potting medium breaks down or the pseudobulbs overcrowd the pot. This is best done in spring after flowering. Use a well-draining orchid mix, typically a bark-based substrate.