Cereus cacti are erect or semi-prostrate columnar cacti reaching up to a meter in height, the stems up to 15 cm in diameter with up to 8 ribs, the central spines and 4 to 7 radial spines. Has white flowers to 25cm. Cereus peruvianus 'Petra' is drought tolerant when established. A popular cactus with heavy branching "arms". Needs well-draining soil, bright light or full sun. Water thoroughly when soil is dry to the touch. Looks best with regular watering in the hotter months.
Common name: Cereus monstrose repandus 'Petra'
Light: Full sun to partial shade
Frost tolerance: Not Frost hardy
Water: Very little water
Soil: Light and free draining
Some of the information in this description has been found at desert-tropicals.com, llifle.com and cactus-art.biz
