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Oreocereus trollii

Oreocereus trollii, native to mountains of South America, forms clumping clusters of chunky columns up to 60 centimetres (2 feet) in height.

Columnar stems are densely covered in white wool (actually white radial spines that have evolved to resemble "hairs"), that totally obscures the body of the cactus. Some bright red spines are visible above the wool. Flowers are violet red and semi-tubular in shape.

Bright light for best appearance. In cultivation, Oreocereus requires bright light to produce dense hairs, but, as a former mountain dweller, does not care for extremely high temperatures.

Prefers porous cactus soil with adequate drainage. Bright light/full sun with ample airflow. Water thoroughly when soil is dry. Do not overwater during cold winter months. Preferable not to water on overcast days, humid days or cold winter days. Hardy to -6.5°C (20 °F), but best to protect from frost to prevent possible scarring.

See Gallery and Contact Form below photos.

Technical notes

Common name Old Man of The Mountain
Latin name Oreocereus trollii
Availability Good
Frost tolerance -7°C
Planting location Full Sun
Watering Requirements Occasional
Growth Rate Slow
Preferred Soil Any
Height when mature 1 Metres

Measurement: Container Diameter
Size Range Price Approximate Quantity Required
18cm 16
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