Water regularly, keeping the soil consistently moist but not waterlogged, especially during the growing season. Reduce watering in winter, allowing the top few centimeters of soil to dry out between waterings.

Ensure good drainage to prevent root rot.

Prune to manage size and shape, and to encourage bushier growth. Remove dead or faded flowers regularly to promote continuous blooming. Pruning in early spring before new growth emerges is ideal for shaping.

Propagate by seeds sown in spring, either directly outdoors after the last frost or started indoors a few weeks prior. Seeds often germinate readily. Cuttings can also be taken in summer.

Repot young plants annually in spring as they outgrow their containers. Mature plants can be repotted every 2-3 years. Use a well-draining potting mix and a pot only slightly larger than the current one.