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Old Man of the Andes
Scientific Name: Oreocereus celsianus (Lem. ex Salm-Dyck) Riccob.
Synonym: Oreocereus neocelsianus, Borzicactus celsianus, Cereus celsianus, Pilocereus celsianus, Oreocereus maximus
Family: Cactaceae
Old Man of the Andes (Oreocereus  celsianus) Recommended Temperature Zone:
sunset: 10-13
USDA: 8-10

Frost Tolerance: Hardy in Phoenix to 10F (-12C)

Minimum Avg. Temperature: 50F (10C)

Heat Tolerance: Need protection from the afternoon sun in summer in Phoenix

Sun Exposure: Full sun

Origin: Bolivia, Peru, northern Argentina

Growth Habits: Grows slowly to 10 feet (3m), 4 inches in diameter (11 cm)

Watering Needs: Light water, rot easily in winter if overwatered

Propagation: Seeds

This cactus is very frost resistant, but beware of the sharp thorns hidden within the abundant white hairs. It has showy 3 to 4 inches flowers (7-10 cm), in summer.

Picture 2 is from Willy Smith's Site

Flowers of Oreocereus celsianus, Copyright Martin Lowry

Fruit and flower of Oreocereus celsianus, in Britton and Rose's The Cactaceae

Blooming Habits:

Fruiting Habits:

Check for Field Collection numbers at Ralph Martin's Site

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Desert-Tropicals is dedicated to provide gardening advice, gardening ideas, and information about flower of all kind for landscape and collections. We try to check carefully the identification of the plants on the illustrations as well as the other information from the page, but occasionally errors do occur. if you notice anything that needs to be changed please contact us. Thanks.

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