Torch cactus (Soehrensia spachiana)
Care, watering, light and tips for Torch cactus on Floravia.
Quick facts
- Family: Cactaceae
- Difficulty: Easy to care for
- Watering: every 15 days
- Light: Full sun
- Temperature: 10–40 °C
About Torch cactus
Soehrensia spachiana, commonly known as the golden torch cactus, is a fast-growing columnar cactus native to Argentina. It features bright green stems with well-defined ribs and short spines, culminating in large, fragrant white flowers that open at night. It is ideal for cactus gardens, rockeries, or as a striking standalone specimen in large pots, adding elegant vertical structure.
Native range
Argentina and Bolivia
Care tips
This cactus requires full sun exposure for optimal growth and abundant flowering. Watering should be moderate during the growing season (spring-summer), allowing the substrate to dry out completely between waterings, and almost none in winter. Use a very well-draining substrate, specifically formulated for cacti and succulents. A common mistake to avoid is overwatering, which can lead to root rot.
How to save a dying Torch cactus
- Warning signs
- Soft, yellow/black base; wrinkled/dehydrated stems; pale/black spots.
- First aid
- Check roots for rot. Cut damaged parts with clean knife. Repot in dry, well-draining soil.
- What kills it
- Overwatering, especially in winter. Low light and moisture-retaining substrate.
- Can it be saved?
- Yes, if rot is not too advanced and healthy tissue remains for propagation.