Water regularly, keeping the soil consistently moist but not waterlogged. Allow the top inch of soil to dry out slightly between waterings. Reduce watering during cooler months when growth slows.

Ensure good drainage to prevent root rot, especially in containers.

Prune to maintain shape and encourage bushier growth. Deadhead spent flowers to promote more blooms. For shaping, prune in late winter or early spring before new growth begins.

Remove any dead, damaged, or crossing branches to improve air circulation and plant health.

Propagate Mussaenda arcuata from stem cuttings. Take cuttings of about 10-15 cm length in spring or summer. Remove the lower leaves and dip the cut end in rooting hormone.

Plant in a moist, well-draining potting mix and keep in a warm, humid environment until roots form.

Repot young plants annually in spring. Mature plants can be repotted every 2-3 years or when root-bound. Use a well-draining potting mix. Choose a pot that is only slightly larger than the current one.

Water thoroughly after repotting to settle the soil.