Cereus Peruvian Montrose Plant Description Cereus Peruvianus Monstrose can grow up to 15 feet tall. The mini version can grow to be about 8-10 feet tall. This cactus is also known as "Peruvian Apple Cactus" since it produces white nocturnal flowers that produce round red fruit that are often compared to dragon fruit. This slow growing cactus develops mutated knobs with white bristles and long brown spines. A perfect cactus to keep in full sun or indoors on a windowsill. Cereus Peruvian Montrose Plant Specs and Regions Native to: South America, Brazil, Argentina, and Peru Zone: 10 Hardiness: tender soft succulent - will not tolerate frost Recommended light conditions: full sun Bloomtime: Summer through Fall (nocturnal) Bloom Color: white Cereus Peruvian Montrose Water & Light Recommendations Watering Needs Indoors: Instead of giving your succulents gradual sips of water throughout the week, give them a good soaking, to the point where water runs out the drainage holes at the bottom of the pot. Be sure to empty the water that runs into the saucer, succulents do not like to sit in water. Then let the soil dry out completely before watering again. Watering Needs Outdoors: In the Summer water your succulents every two weeks, by soaking them and letting them dry before watering again. In the Winter water your succulents once a month. Technical Information About This Plant Requires bright light for most of the day. Or constant dappled shade. Best to water every 2 weeks.