Growth Pattern: Unlike typical columnar cacti, Monstrose cacti grow in unpredictable, irregular patterns. They may have multiple branches, crests, or even fused stems.

Size: These cacti can vary in size but are often large and robust, making them a striking addition to any cactus collection.

Spines: The spines on Monstrose cacti can also be irregular, sometimes appearing in clusters or growing at unusual angles.

Flowers: Like other Cereus species, Monstrose cacti can produce large, beautiful flowers, typically white and blooming at night.
Care for a Cereus Monstrose cactus is similar to other cacti:

Light: They need plenty of sunlight, ideally full sun or bright, indirect light.
Water: Water sparingly, allowing the soil to dry out completely between waterings. Overwatering can lead to root rot.

Soil: Use well-draining cactus or succulent soil mix.

Temperature: They prefer warm temperatures and should be protected from frost.