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How to Revive House Plants From Freezing

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How to Revive House Plants From Freezing

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Overview

Frost damage occurs in a plant when the liquid inside the plant's cells turns to ice. This damages the cells and prevents the plant from obtaining water. Frost-damaged plant tissue looks water logged and wilted when the damage first occurs. Eventually the foliage will turn dark brown or black. If the damage has affected enough of the plant's tissue, it is unlikely to recover. But there is no way to know the extent of the damage until your plant begins producing new growth in the spring. Therefore, the University of California's Horticultural Advisor suggests that gardeners wait until then to assess frost damage and try to revive the plant.

Step 1

Move your houseplant indoors immediately. After a houseplant is frost damaged and defoliated, it suffers a higher risk of sunburn.

Step 2

Remove all of the frost-damaged fruits from containerized fruit-bearing plants and trees. This fruit will rot quickly now that its cells are ruptured. Furthermore, supporting this damaged fruit puts the tree under more stress.

Step 3

Prune away the parts of the plant that are visibly damaged and fail to produce new growth by summer.

Step 4

Dilute the plant's fertilizer application by 1/2 until it has fully recovered. Now that some of its foliage is gone, it has more roots than it needs and may produce rapid new growth. Withholding fertilizer will stabilize some of this growth.

Step 5

Cut severely damaged perennials and shrubs back to the soil line if they show no signs of life at the beginning of the growing season. Your plant may indeed be dead, but cutting it back may stimulate it to produce new growth. However, if your plant produces no growth during the season, it is likely dead.

Things You'll Need

  • Pruning shears

References

  • Master Gardeners of Santa Clara County: Frost-Damaged Plants
  • University of California: Frost Protection for Citrus and Other Subtropicals
  • Arizona Municipal Water Users Association: Low Desert Pruning Guide for Commonly Used Shrubs
Keywords: prune frozen plant, frost damage, frozen houseplant

About this Author

Emma Gin is a freelance writer who specializes in green, healthy and smart living. She is currently working on developing a weight-loss website that focuses on community and re-education. Gin is also working on a collection of short stories, because she knows what they say about idle hands.