An incredible desert growing cacti native to Peru (if the name didn't give it away!) and other parts of South America. They usually flower between the months of June to August and its white blooms are absolutely massive! This species in particular twists as it grows upwards standing out among other cereus species.
Cacti in general are going to do best in a very bright space. Either bright filtered or direct sun. Water roughly every 3-4 weeks as the foliage starts to feel soft in between the spines. When re-potting use a coarse cacti soil medium.