Eulychnia acida
Care, watering, light and tips for Eulychnia acida on Floravia.
Quick facts
- Family: Cactaceae
- Difficulty: Easy to care for
- Watering: every 20 days
- Light: Full sun
- Temperature: 10–40 °C
About Eulychnia acida
The Copao (Eulychnia acida) is a columnar cactus endemic to Chile, recognized by its robust, branched trunk that can reach several meters in height. Its stems are covered with spines, giving it an imposing and sculptural appearance. It is ideal for arid climate gardens, rockeries, or as a standalone specimen where its characteristic silhouette can stand out.
Native range
Central and southern Chile
Care tips
It requires direct sun exposure for optimal development, tolerating high temperatures well. Watering should be sparse, allowing the substrate to dry out completely between waterings, especially in winter to prevent root rot. It prefers well-drained, sandy, or gravelly soils. A common mistake is overwatering, which is the main cause of death in this species; it's better to underwater than to overwater.
How to save a dying Eulychnia acida
- Warning signs
- Stem softening, dark spots, rot from the base.
- First aid
- Remove soft/rotted parts with a clean knife. Let wound dry.
- What kills it
- Overwatering, especially in winter or low light.
- Can it be saved?
- Yes, if rot hasn't advanced far into the main stem.