Hilderwintera/Cleistocactus winteri subsp. colademono - Monkey's Tail

Commonly known as: Monkey's Tail, Rat Tail 

Care Information: Choose a location with full sun and has well-draining soil. During the spring and summer, water Cleistocactus when the top inch (2.5 cm) of soil dries. Reduce watering to every five weeks during the fall if the ground dries out. In winter, keep your cactus dry, or the moist ground combined with the cool temperatures and dormancy may cause the roots to rot. Fertilize with a low-nitrogen fertilizer during the active growth period. A slow-release fertilizer applied in the spring will be sufficient for the year.

It is possible to propagate by cutting a small branch from a Cleistocactus and rooting it, but this inevitably leaves a disfiguring scar near the main stem's base. If an offset is removed to be used in propagation, remember to let it dry for a week or so, allowing the wound to heal. Rooting usually occurs within 3 to 8 weeks. Therefore, it is best to raise Cleistocactus from seed. Be sure to get the seeds from a reputable source.

Scientific Classification

Family: Cactaceae

Subfamily: Cactoideae

Tribe: Trichocereeae

Genus: Cleistocactus

Origin: Cleistocactus winteri subsp. colademono is endemic to Bolivia. It occurs in Florida province in the Santa Cruz Department, about 30 kilometers east of Samaipata, a small town in the eastern foothills of the Bolivian Andes.

Hardiness: USDA hardiness zones 9a to 11b: from 20 °F (−6.7 °C) to 50 °F (+10 °C).

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