Water Barleria alluaudii thoroughly when the top 2-3 cm of soil feels dry. Avoid waterlogging, as this can lead to root rot. Reduce watering slightly during cooler months, but do not allow the soil to dry out completely.

Ensure good drainage.

Prune Barleria alluaudii after flowering to maintain its shape and encourage bushier growth. Remove any dead, damaged, or leggy stems.

Light pruning can be done throughout the year to keep the plant tidy and promote new blooms.

Propagate Barleria alluaudii from stem cuttings taken in spring or summer. Dip the cut end in rooting hormone and plant in a well-draining potting mix. Keep the cuttings moist and warm until roots form.

Repot Barleria alluaudii every 1-2 years, or when it becomes root-bound, preferably in spring. Choose a pot that is one size larger than the current one and use a fresh, well-draining potting mix.

This revitalizes the plant and encourages continued growth.