Oreocereus trollii
TAXONOMY
FamilyCactaceae
GenusOreocereus
Zone9
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Plants of the World OnlineABOUT
Oreocereus trollii, commonly known as the Old Man of the Andes, is a succulent shrub native to the montane tropical climates of the Andes. It belongs to the Cactaceae family and is characterized by its woolly, white hair-like spines. This plant is well-adapted to high altitudes and can tolerate cooler temperatures compared to other cacti.
ALSO KNOWN AS
Old Man Of The Andes
Borzicactus celsianus var. trollii
Borzicactus trollii
Cereus trollii
Echinopsis trollii
Oreocereus crassiniveus
Oreocereus irigoyenii
Oreocereus trollii var. crassiniveus
Oreocereus trollii var. tenuior
Pilocereus trollii
OVERVIEW
VPDCalculate
WaterVery Dry
SoilSandy
LightDirect Bright (8 Hours)
Temperature20° C
Humidity40%
Dormancy3 Months
pH6.5
Pressure1,013 mbar
DETAILS
Care Instructions
Oreocereus trollii requires bright, direct sunlight for optimal growth. It thrives in moderate temperatures and prefers low humidity environments. Watering should be infrequent, allowing the soil to dry out completely between waterings. This plant can be grown both indoors and outdoors, provided it receives adequate light.Soil
The plant prefers well-draining sandy soil. A cactus or succulent mix is ideal, as it ensures proper drainage and prevents root rot. Avoid using heavy or clay soils that retain moisture.Fertilizer
Fertilize Oreocereus trollii with a balanced cactus fertilizer, such as 5-10-10, during the growing season. Apply the fertilizer sparingly, about once a month, to avoid over-fertilization.Repotting
Repot the plant every 2-3 years or when it outgrows its current pot. Choose a slightly larger pot with good drainage. Handle the plant carefully to avoid damaging its spines and roots.Propagation
Propagate Oreocereus trollii through stem cuttings. Allow the cuttings to dry and callous for a few days before planting them in well-draining soil. Propagation is best done during the growing season.Pruning
Pruning is generally not required for this plant. However, you can remove any dead or damaged parts to maintain its appearance.Toxicity
Oreocereus trollii is not known to be toxic to pets or humans. However, its spines can cause physical injury, so handle with care.Additional
Ensure the plant is protected from frost during the winter months. If grown indoors, place it near a south-facing window to provide adequate light. Regularly check for pests such as mealybugs and spider mites.REVOLUTIONIZE YOUR PLANT CARE
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