Water Justicia gendarussa regularly, keeping the soil consistently moist but not waterlogged. Allow the top 2-3 cm of soil to dry out slightly between waterings, especially during the growing season.

Reduce watering in winter to prevent root rot. Ensure good drainage to avoid standing water.

Prune Justicia gendarussa regularly to maintain a bushy shape and encourage flowering. Pinch back young stems to promote branching. Remove spent flower stalks and any dead or leggy growth.

Pruning can be done year-round, but heavier pruning is best in spring before new growth begins.

Willow Leaved Justicia is easily propagated from stem cuttings. Take 10-15 cm cuttings from healthy, non-flowering stems in spring or summer. Remove the lower leaves and insert the cuttings into moist potting mix.

Rooting typically occurs within 3-4 weeks in a warm, humid environment.

Repot Justicia gendarussa every 2-3 years or when it becomes root-bound. Spring is the ideal time for repotting. Choose a pot that is only slightly larger than the current one and use a well-draining potting mix.

Water thoroughly after repotting and place in a shaded location for a few days.