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Cleistocactus samaipatanus

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Scientific Name

Cleistocactus samaipatanus (Cárdenas) D.R.Hunt

Synonyms

Bolivicereus brevicaulis, Bolivicereus croceus, Bolivicereus rufus, Bolivicereus samaipatanus, Borzicactus samaipatanus

Scientific Classification

Family: Cactaceae
Subfamily: Cactoideae
Tribe: Echinocereeae
Genus: Cleistocactus

Description

Cleistocactus samaipatanus is a long, narrow, columnar cactus, lime green in color,  with 14 to 17 ribs and stiff pale gold spines up to 1.2 inches (3 cm) long. It plants shrubby, branching basally with several upright stems up to 5 feet (1.5 m) long and up to 2 inches (5 cm) in diameter, forming open bushes up to 5 feet (1.5 m) wide. The brilliant red to pink flowers are up to 2 inches (5 cm) long and up to 1 inch (2.5 cm) in diameter. The fruits are small, spherical, and reddish with dense white and brown wool, up to 0.4 inch (1 cm) long and wide.

Photo via suculentas.com

Hardiness

USDA hardiness zone 9b to 11b: from 25 °F (−3.9 °C) to 50 °F (+10 °C).

How to Grow and Care

Choose a location that gets full sun and has well-draining soil. Water Cleistocactus during the spring and summer when the top inch (2.5 cm) of soil dries out. During the fall, reduce watering to every five weeks if the ground dries out. In winter, keep Cleistocactus dry or the moist ground combined with the cool temperatures and dormancy may cause the roots to rot. Fertilize Cleistocactus with a low-nitrogen fertilizer during the active growth period. A slow-release fertilizer applied in the spring will be sufficient for the whole 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 base of the main stem… – See more at: How to Grow and Care for Cleistocactus

Origin

Native to Bolivia.

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