Cereus cactus (Cereus hexagonus)
Care, watering, light and tips for Cereus cactus on Floravia.
Quick facts
- Family: Cactaceae
- Difficulty: Easy to care for
- Watering: every 15 days
- Light: Full sun
- Temperature: 10–40 °C
About Cereus cactus
Cereus hexagonus, also known as the "Lady of The Night Cactus," is an imposing columnar cactus native to South America. It can reach considerable heights, featuring bluish-green stems and short spines. Its beauty lies in its large, fragrant white flowers that open at night, making it a spectacular specimen for desert gardens or as a focal point in patios. It is ideal for cactus collectors and those seeking a low-maintenance plant with high visual impact.
Native range
Antilles, Central America, and northern South America
Care tips
This cactus requires full sun for optimal growth and abundant flowering. Watering should be sparse, allowing the soil to dry out completely between waterings, especially during winter. Use a well-draining substrate specifically formulated for cacti and succulents. A common mistake is overwatering, which can lead to root rot; it is better to underwater than to overwater.
How to save a dying Cereus cactus
- Warning signs
- Soft, yellowing or black stems at base, brown or sunken spots.
- First aid
- Inspect roots, cut soft parts with clean knife. Repot in dry, well-draining substrate.
- What kills it
- Overwatering, especially in winter or low light. Heavy soil or poor drainage.
- Can it be saved?
- Yes, if rot hasn't reached apex or isn't too extensive. Act quickly.