Silver Torch Cactus
Cleistocactus strausii
Silver Torch Cactus is an elegant columnar cactus with stunning silvery-white spines and vibrant deep red tubular flowers that bloom along its vertical stems.
Cactaceae (Cactus family)
Spring and summer (when mature, typically 18+ inches tall)
Symbolism & Meanings
Key Meanings
Perfect For
Color Meanings
Cultural Significance
Native to high mountain regions of Bolivia and Argentina, this cactus has become beloved worldwide for its elegant silver appearance and architectural form. The striking contrast between the silvery-white spined columns and deep crimson flowers makes it a favorite among cactus collectors and garden designers. Its vertical growth habit and clustering form create living sculptures in desert gardens. The name honors Leopold Straus, a German merchant and cactus enthusiast. Winner of recognition for its ornamental excellence.Shop Our Floral Collection
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Physical Characteristics
Natural Habitat
Growing Guide
Sunlight
Full sun (essential for flowering)
Water
Low; drought-tolerant, prefers dry winter dormancy
Soil
Very well-drained, Sandy, Gritty, Rocky, Porous cactus mix
Expert Growing Tips
Plant in extremely well-draining cactus soil
Water sparingly; allow soil to completely dry between waterings
Reduce watering significantly in winter (dormancy period)
Requires full sun for strong growth and flowering
Begins flowering when columns reach 18 inches tall
Can tolerate cold down to 14-20°F (-10 to -6°C) for short periods
Grows relatively fast for a cactus with proper care
Propagate by cuttings or seed (seed preferred)
Often branches from base creating multiple columns
Uses & Benefits
Ornamental Uses
- Specimen cactus for dramatic vertical accent
- Xeriscape and desert gardens
- Containers and patio displays
- Rock gardens
- Foundations and narrow spaces
- Grouped with other columnar cacti
- Indoor/outdoor exotic houseplant
Traditional Uses
- Primarily ornamental
- Contains compounds common to cacti family
- No significant medicinal applications recorded
Disclaimer: Information provided is for educational purposes only. Consult healthcare professionals before using any plant medicinally.
Further Reading
Frequently Asked Questions about the Silver Torch Cactus
How fast does silver torch cactus grow?
Silver Torch Cactus is considered a relatively fast-growing cactus. With proper care, it can grow several inches per year and reach flowering size (18 inches) in a few years.
When does silver torch cactus bloom?
Silver Torch Cactus blooms in spring and summer once the columns reach about 18 inches tall. The deep red tubular flowers appear along the sides of the stems and last 4-5 days.
Is silver torch cactus cold hardy?
Yes, Silver Torch Cactus can tolerate cold temperatures down to 14-20°F (-10 to -6°C) for short periods, making it more cold-hardy than many cacti. It's suitable for USDA zones 9-11.
How do you propagate silver torch cactus?
Silver Torch Cactus is best propagated from seed, though cuttings can also work. Take cuttings near the base, allow to callus for several days, then plant in well-draining soil. Rooting typically occurs within 3-8 weeks.
Available Colors
Quick Facts
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