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Old Man of the Mountain
Scientific Name: Oreocereus trollii Kupper
Synonym: Borzicactus trollii, Oreocereus irigoyenii, Oreocereus bruennowii, Cereus trollii, Oreocereus celsianus var. bruennowii
Family: Cactaceae
Old Man of the Mountain (Oreocereus  trollii)
Oreocereus trollii
Recommended Temperature Zone:
USDA: 7-11

Frost Tolerance: Hardy in Phoenix to 20F (-7C)

Minimum Avg. Temperature: 50F (10C)

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

Sun Exposure: Full sun

Origin: Mountains of Argentina and southern Bolivia

Growth Habits: Columnar cactus, slowly clumping, 2 feet tall (60 cm)

Watering Needs: Light water, rot easily in winter


Blooming Habits:
Red flowers, 1.5 inches in diameter (4 cm)

Fruiting Habits:

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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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