How to Save a Saguaro Cactus From Freezing

Saguaros are slow-growing cactuses best acclimated to warm desert habitat and are primarily found in Arizona. They thrive at elevations below 4,000 feet or where protected from freezing by the landscape. They take more than 100 years to reach full size, with a total life span of 150 or 200 years. Adult saguaros can attain a height of 50 feet and a weight of six tons. Because their weight is mostly made up of water, they need protection from freezing temperatures.

Cotton sheets
Heavy gloves
Outdoor light fixture with a 60-watt bulb
Outdoor extension cord
Outdoor hose with water source

Instructions

- 1
  Cover the saguaro with cotton sheets when the temperature falls to freezing or just below. Wear heavy gloves to protect your hands from the spines, and cover the cactus completely.
- 2
  Light a 60-watt electric bulb under the sheet when below-freezing temperatures are predicted. Use an outdoor-safe fixture and electric cord. Make sure that the bulb does not come in contact with the sheet or the saguaro.
- 3
  Remove the coverings after the freeze. Turn off and remove the light.
- 4
  Water around the cactus with a hose to thaw the soil and ensure that the saguaro has sufficient water.

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