A slender columnar cactus densely clothed in fine white spines giving a silvery silken sheen, sending out horizontal deep-red tubular flowers from mature stems. A graceful upright accent for hot dry spots.
At a glance
- Plant type: Succulent
- Mature size: 2 m H × 30 cm W
- Aspect: full sun
- Water: very drought tolerant once established
- Frost: tender
- Maintenance: low maintenance
- Origin: Exotic
About Silver Torch Cactus
Cleistocactus strausii is a slow-growing succulent in the Cactaceae family. It reaches around 2 m tall and 30 cm wide at maturity, with evergreen and silver-grey foliage. Red flowers appear in summer.
Where to grow Silver Torch Cactus
Silver Torch Cactus suits arid and semi-arid, Mediterranean and warm-temperate climates and grows best in full sun. It is frost tender, so protect it from hard frosts or grow it in a sheltered spot or pot. It also is a genuinely water-wise choice and is a sought-after collector's plant.
Soil & planting
Silver Torch Cactus does best in sandy and free-draining soil. Plant into well-prepared ground, firm the soil around the roots and water deeply to settle it in.
Watering & feeding
Silver Torch Cactus handles dry conditions well once established. Feed as new growth begins, following the rate on a balanced garden fertiliser. Check moisture below the mulch during establishment and water thoroughly when needed rather than following a rigid schedule.
Pruning & care
Prune Silver Torch Cactus after flowering to keep it compact and encourage the next flush of blooms. For most gardens, maintenance is low maintenance.
Using Silver Torch Cactus in the garden
Silver Torch Cactus earns its place for pots and courtyard containers and a feature or specimen planting. It is equally at home in the ground or a large pot on a balcony or courtyard.
Companion planting & design
Silver Torch Cactus sits most comfortably beside plants adapted to very drought tolerant and arid and semi-arid climate. A small cluster gives stronger visual impact than isolated plants scattered through the garden.
Good to know
It is thorny — useful as a barrier, but wear gloves when pruning.
Buying Silver Torch Cactus
Plant Sale lists Silver Torch Cactus as potted plants. Availability is confirmed when you request a quote; use the panel above to register interest.
