Cota dubia prefers consistently moist soil but can tolerate short periods of dryness once established. Water thoroughly when the top 2-3 cm of soil feels dry to the touch.

Avoid waterlogging, as this can lead to root rot. Reduce watering frequency during winter dormancy.

Prune Cota dubia to maintain shape and encourage bushier growth. Deadhead spent flowers regularly to promote continuous blooming throughout the season.

Light trimming can be done in late winter or early spring before new growth begins to remove any winter damage or shape the plant.

Cota dubia can be propagated by seeds sown in spring or by stem cuttings taken in late spring or early summer. Seeds require light for germination and should be kept moist.

Cuttings should be rooted in a well-draining medium, and can be misted to maintain humidity.

Repot Cota dubia every 2-3 years, or when it becomes root-bound. Spring is the ideal time for repotting, just as new growth begins. Use a well-draining potting mix, such as a combination of peat moss and perlite.

Choose a pot that is only slightly larger than the current one.