Water Chinese Hound's Tongue regularly, keeping the soil consistently moist but not waterlogged. Allow the top inch of soil to dry out slightly between waterings.

Reduce watering frequency during winter months when the plant's growth slows down. Ensure good drainage to prevent root rot.

Prune Chinese Hound's Tongue to maintain its shape and encourage bushier growth. Deadhead spent flowers regularly to promote continuous blooming. Light pruning can be done after flowering to tidy up the plant.

Avoid heavy pruning, as it is generally a biennial or short-lived perennial.

Chinese Hound's Tongue is easily propagated by seed. Sow seeds in early spring or autumn, either directly outdoors or in seed trays. Seeds germinate best in cool conditions.

The plant also self-seeds readily, often naturalizing in suitable environments.

Repotting is generally not required for Chinese Hound's Tongue, as it is often grown as an annual or biennial and may self-seed.

If grown in a container and it becomes root-bound, repot in spring to a slightly larger container with fresh, well-draining potting mix. Ensure the new pot has drainage holes.