The "Cereus Peruvianum", "Peruvian apple cactus" or "Columnar Cactus" is native to South America and is a popular indoor plant, adding a chic, sculptural and exotic look to any space.  The Cereus Peruvianus is a blue-ish, green desert cactus that grows upright in a single column with 3-5 blades.  Care Instructions: Requires bright light daily. Allow soil to dry out thoroughly between watering. As it grows over 5 feet, the weight may lead it to slant toward the direction of the sunlight. Rotate as needed in the opposite direction to keep the straight shape. Care Level Rating: Easy Notes: This variety measures in at 80cm in height and the pot size is 17cm. All large plants come with their plastic nursery pot only and no need to re-pot for four or five years. Ceramic pots are sold separately.