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    • Photo of Oreocereus celsianus form, habitat by Pamla J. Eisenberg

    Photo by Pamla J. Eisenberg

    This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license.

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    Oreocereus celsianus

    Also Known As

    • Borzicactus celsianus
    • Cereus celsianus
    • Oreocereus maximus
    • Oreocereus neocelsianus
    • Pilocereus celsianus
    • Old Man Cactus
    • Old Man of the Andes
    • Old Man of the Mountains

    Plant type

    cactus / succulent

    size

    • H: 3'-10'
    • W: 4"-18"

    planting zones

    • 8a-10b

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    Oreocereus celsianus plant details

    Oreocereus celsianus is an evergreen cactus / succulent with blue foliage. In summer pink flowers emerge. Features fuzzy texture. Grows well with sun and occasional - low water. Drought tolerant once established. Does well in average, gritty and well-drained soil. A good option if you're seeking something verticillium wilt resistant.

    CHARACTERISTICS OF Oreocereus celsianus

    Plant type: cactus / succulent
    Plant family: cactaceae
    Foliage: evergreen blue
    Mature size: 4 IN - 18 IN - wide, 3 FT - 10 FT - tall
    Flowers: pink blooms in summer
    Uses: spiky, xeric

    GROWING CONDITIONS for Oreocereus celsianus

    USDA Zones: 8a - 10b
    Sun exposure: sun
    Watering frequency: occasional - low
    Resistant to: verticillium wilt
    Soil needs: average, gritty and well-drained

    Nursery contributed plant descriptions

    Protect from Direct Afternoon Sun. No Xtra water in Winter. Full Sun to Partial Shade. Pink, Magenta. Outdoor. part shade.

    By: Moon - Sun Cactus & Koi Gardens

    Here's one of those annoying plants that can live through amazing extremes of cold if it is kept dry, but still doesn't seem to grow outside in the Pacific Northwest without a lot of help. Beginning as a column of white hair with spines sticking out (it's pretty cool even when little), it may eventually offset to form large clumps. Native to the highlands of Bolivia, it may endure temperatures down to about 5 °F if kept COMPLETELY dry. The wetter your winters are, the less frost is tolerated. Some summer water is appreciated.

    By: The Desert Northwest

    Gardening facts about Oreocereus celsianus plant

    How to Grow Oreocereus celsianus

    • Sun Exposure

      • sun

    • Water Needs

      • occasional - drought tolerant

    • Soil Needs

      • average
      • well-drained
      • gritty

    • Special Situation

      • verticillium wilt resistant

    Features

    • Foliage Color

      • blue

    • Flower Color

      • pink

    • Flower Season

      • summer

    • Foliage Season

      • evergreen

    • Texture

      • fuzzy

    Landscape groups by tags

    See other plant types of Oreocereus for your garden

    Oreocereus fossulatus

    aka Borzicactus fossulatus, Oreocereus celsianus var. foveolatus, Oreocereus fossulatus, Pilocereus celsianus var. foveolatus, Pilocereus fossulatus

    Plant Type

    Shrub, Cactus / Succulent

    Zones

    9a-11

    Size

    Height: 3'-6'

    Width: 4'-8'

    • sun - mostly sun
    • low - drought tolerant
    Photo of Oreocereus fossulatus form, spiky by Stan Shebs
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    Oreocereus trollii

    aka Borzicactus trollii, Cereus trollii, Oreocereus celsianus var. bruennowii, Oreocereus irigoyenii, Oreocereus irigoyenii, Old Man Cactus, Old Man of the Andes

    Plant Type

    Cactus / Succulent

    Zones

    7a-10b

    Size

    Height: 24"-30"

    Width: 6"-24"

    • sun - mostly sun
    • low - drought tolerant
    Photo of Oreocereus trollii form, spiky by Stan Shebs
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    Oreocereus leucotrichus

    aka Arequipa leucotricha, Borzicactus hendriksenianus, Borzicactus leucotrichus, Cereus hendriksenianus, Echinocactus leucotrichus, Oreocereus hendricksenianus var. multilanatus, Oreocereus hendriksenianus, Chastudo, Old Man of the Andes, Viejito

    Plant Type

    Cactus / Succulent

    Zones

    9a-11

    Size

    Height: 2'-4'

    Width: 2'-4'

    • sun - mostly sun
    • low
    Photo of Oreocereus leucotrichus foliage by Kara Nursery
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    Espostoa lanata

    aka Cactus lanatus, Cephalocereus lanatus, Cereus dautwitzii, Cereus lanatus, Cereus lanatus ssp. sericatus, Cereus sericatus, Cleistocactus lanatus, Espostoa dautwitzii, Espostoa lanata var. lanata, Espostoa lanata var. sericata, Espostoa laticornua, Espostoa procera, Espostoa sericata, Oreocereus lanatus, Pilocereus dautwitzii, Pilocereus lanatus, Peruvian Old Man Cactus

    Plant Type

    Cactus / Succulent

    Zones

    9b-11

    Size

    Height: 6'-20'

    Width: 2'-8'

    • mostly sun - bright shade
    • drought tolerant
    Photo of Espostoa lanata form by Ripepette
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    More Options

    +1 more Oreocereus
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