Calibrachoa calycina prefers consistently moist soil but dislikes waterlogging. Water thoroughly when the top inch of soil feels dry. Reduce watering in cooler months when growth slows.

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

Pinch back stems regularly to encourage bushier growth and more blooms. Deadhead spent flowers to maintain a tidy appearance and prevent seed formation.

Harder pruning can be done in late winter or early spring before new growth begins.

Calibrachoa calycina can be propagated from stem cuttings taken in spring or early summer. Dip cuttings in rooting hormone and plant in a moist, well-draining potting mix.

Keep humid and warm until roots form, typically within 3-4 weeks.

Repot Calibrachoa calycina annually or when it becomes root-bound, preferably in spring. Use a well-draining potting mix. Choose a pot that is only slightly larger than the current one to avoid overwatering issues.