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Silver Torch Cactus Flower Wikimedia Commons
Cactaceae

Silver Torch Cactus Flower

Cleistocactus strausii

Hidden beauty.

Family
Cactaceae
Genus
Cleistocactus
Native to
Bolivia, Argentina
Bloom season
Summer
Type
cactus
Height
3-10 ft
Sunlight
full sun
Soil
sandy, well-drained, mineral-rich
Water
low
Hardiness
9-11
Lifespan
perennial

Did you know

  • The genus name Cleistocactus comes from the Greek 'kleistos' meaning closed, because the tubular flowers never fully open.
  • Silver torch cactus is covered in dense white hair-like spines that protect it from intense UV radiation at high altitudes.
  • In its native Bolivia, this cactus grows at elevations above 9,000 feet in the Andes mountains.
  • The dark red tubular flowers are pollinated by hummingbirds that can access nectar through the narrow opening.
  • A silver torch cactus must typically be at least 10 to 15 years old before it produces its first flowers.

Color meanings

0

patience

1

hidden beauty

2

endurance

Uses

  • ornamental cactus
  • container plant
  • architectural garden accent