How to Care for Oreocereus celsianus (Old Man of the Andes)

Korean name: 오레오세레우스

Oreocereus celsianus (Old Man of the Andes) photo

Oreocereus is a climbing cactus covered with white hairs that give it a yellowish appearance. It features tall, distinct stems and thrives in dry conditions. It is relatively easy to care for and suitable for pot cultivation.

Key facts

Category: Cactus
Difficulty: Moderate
Where to keep: indoors or outdoors
Native to: Andes Mountains, South America
Growth rate: Slow
Pets: Mildly toxic, so keep pets from chewing on it.
Traits: cactus, drought tolerant, yellowish, hairy
Also known as: Old Man of the Andes, Oreocereus

Care Guide

Light: Prefers direct sunlight.
Watering: Water thoroughly when the soil is dry.
Soil: Use well-draining cactus soil.
Humidity: Prefers dry air.
Temperature: 15~25°C
Fertilizer: Feed once a month with cactus fertilizer during growing season.

Common questions

How often should you water Oreocereus celsianus?

Water thoroughly when the soil is dry. Roughly every 14 days is the baseline; adjust for the season and the spot it sits in.

Where should you keep Oreocereus celsianus?

Light: Prefers direct sunlight. You can grow it indoors or outdoors. Soil: Use well-draining cactus soil.

Is Oreocereus celsianus safe around pets?

Mildly toxic, so keep pets from chewing on it.

Is Oreocereus celsianus good for beginners?

Difficulty: Moderate. Temperature: 15~25°C. Humidity: Prefers dry air. Fertiliser: Feed once a month with cactus fertilizer during growing season.