Allow the soil to dry out completely between waterings. Overwatering is the most common cause of root rot. Reduce watering significantly during the winter dormant period to prevent fungal diseases and rot.

Pruning is generally not necessary for Cereus bicolor unless you need to manage its size or remove dead or damaged stems. Use a sharp, sterile knife to make clean cuts to prevent disease.

Any removed pieces can potentially be used for propagation.

Cereus bicolor is typically propagated by stem cuttings. Allow cut ends to callous over for several days to a week before planting in a well-draining cactus mix.

Provide warmth and bright, indirect light, but avoid watering until roots have formed.

Repot every 2-3 years or when the plant outgrows its container. Choose a pot that is only slightly larger than the current one, with drainage holes.

Use a gritty, well-draining potting mix formulated for cacti and succulents.