Water regularly when the top centimeter of soil feels dry to the touch. Exacum arabicum prefers consistently moist soil but dislikes waterlogged conditions, which can lead to root rot.

Reduce watering slightly during cooler periods to prevent overwatering and its associated issues.

Pinch back young stems to encourage bushier growth and more blooms. Remove spent flowers regularly to prolong the blooming period and maintain a tidy appearance.

Minimal pruning is generally required; focus on shaping and deadheading.

Propagate Exacum arabicum from seeds sown in spring. Sow seeds thinly on the surface of a well-draining seed-starting mix and keep them moist and warm, ideally around 20-24°C.

Germination typically occurs within 2-3 weeks. Seedlings can be transplanted when large enough to handle.

Repot young plants annually or when root-bound, typically in spring. Use a well-draining potting mix, such as a blend of peat moss, perlite, and compost.

Choose a pot only slightly larger than the current one to avoid excessive moisture retention and promote healthy root development.