Water Bidens triplinervia regularly, keeping the soil consistently moist but not waterlogged. Allow the top inch of soil to dry out slightly between waterings, especially during hot weather.

Reduce watering in cooler months. Ensure good drainage to prevent root rot.

Prune Bidens triplinervia to maintain shape and encourage bushier growth. Pinch back the tips of young plants to promote branching.

Deadhead spent flowers regularly to stimulate more blooms and prevent self-seeding if not desired. Light pruning can be done anytime.

Bidens triplinervia can be easily propagated from seeds sown in spring, either directly outdoors or started indoors a few weeks prior.

Cuttings can also be taken in late spring or early summer and rooted in moist, well-draining soil or water. Both methods are quite successful.

Repot Bidens triplinervia every 1-2 years, or when the plant becomes root-bound. Spring is the ideal time for repotting, just as new growth begins.

Use a pot that is one size larger than the current one with a fresh, well-draining potting mix.