Description Cleistocactus winteri ssp. colademononis - Monkey Tail Cactus Care Guide FAQ/Common Issues Cleistocactus winteri ssp. colademononis, also called Monkey Tail Cactus, is a rare trailing cactus native to the rocky slopes of Bolivia. It has become a sought-after find among collectors and enthusiasts who want to grow something uncommon at home. The stems are long and densely covered in white, hair-like spines that feel surprisingly soft to the touch. It grows downward in a cascading, trailing habit that can stretch several feet, with no two plants hanging quite the same way. The overall form is relaxed and natural, almost like something from a fantasy garden. In spring and summer, vivid red-orange tubular flowers emerge along the stems on mature growth, especially after the plant experiences a nighttime temperature drop in autumn and winter. Blooms can be surprisingly prolific when conditions align. Hang this trailing cactus in a basket or place it on a high shelf where the stems can cascade freely. It handles dry air beautifully and tolerates neglect well. The sap can irritate skin and paws, so keep it out of reach of small children and pets. Move it outside to a patio or balcony in summer, where it grows well in warm weather with shelter from heavy rain. Cleistocactus winteri ssp. colademononis - Monkey Tail Cactus grows well in bright indirect light and may scorch in harsh direct sun from south-facing windows. Water it thoroughly every 10-14 days during the growing season, and reduce to once a month or less in winter. Cleistocactus Colademononis does best in a fast-draining cactus and perlite mix, roughly 50/50, to prevent root rot. It prefers temperatures between 60-85°F and should be protected from frost below 25°F. Cleistocactus Colademononis is a moderate grower; feed it with diluted cactus fertilizer once a month during the active growing season. It is hardy in USDA zones 9-11 and tolerates brief dips to around 25°F but prefers frost-free conditions year-round. It grows outdoors in California, Arizona, Texas, Florida, Hawaii, Nevada, Louisiana, Mississippi, Alabama, Georgia, and South Carolina. Coastal areas of Oregon and the warmer pockets of New Mexico and Arkansas that edge into zone 9 can also support outdoor growth with minimal winter protection. Q: How often should I water Cleistocactus winteri ssp. colademononis - Monkey Tail Cactus? A: Every 10-14 days during the growing season; let the soil dry out completely between waterings. In winter, cut back to once monthly or less. Q: Is this plant safe for pets? A: Cleistocactus winteri ssp. colademononis - Monkey Tail Cactus has sap that can irritate skin and paws. Place it on a high shelf well away from small children and pets. Q: Can Cleistocactus Colademononis go outside in summer? A: Yes, it enjoys spending summer on a patio or balcony in warm weather. Provide shelter from heavy rain and avoid sudden temperature swings when moving it. Q: Why aren't my flowers appearing? A: Cleistocactus Colademononis needs a natural temperature drop in autumn and winter to trigger blooming. Keep it slightly cooler and drier during that rest period. Q: How fast does Monkey Tail Cactus grow? A: It adds noticeable length to its trailing stems each season with good light and occasional feeding. Q: Which window direction works best for this cactus? A: Monkey Tail Cactus does well in bright indirect light from an east or west-facing window. Avoid prolonged direct sun in south-facing windows, which can scorch the hair-like spines.