Protecting Plants from the Cold

Emily's Gardening Almanac

Timely Tips from a
Professional Gardening Expert

Protecting Plants from the Cold

When we talk about protecting plants from the cold we are speaking of protecting plants from damage by high winds, heavy snow or ice. We also are talking about protecting plants from the alternate freezing and thawing of the soil beneath the plants.

One of the most important things you can do for your evergreens during the winter is to provide moisture for the plant’s roots. Evergreens continue to lose water through transpiration so you must provide moisture to the roots. If the ground is frozen or dry, then water is not available to the roots. If the plant draws moisture from the living plant cells instead of the roots, then the cell could die and consequently the leaves turn brown and die.

High winds can cause a higher rate of transpiration. Provide additional water during dry periods and freezes. Protect sensitive plants by planting them in a sheltered location.

A warm winter sun can also cause a higher transpiration rate. Shade sensitive plants from the direct winter sun especially the morning sun. It is better for plants that freeze to thaw slowly.

Heavy snow can cause damage to plants. Brush soft snow off the shrubs with a broom, especially if the temperature is to remain cold and a freeze is expected. Often the most damage occurs from snow or ice falling from the roof onto frozen branches. If branches are bent on shrubs or trees, it is advisable to wait a few days before pruning. Often the branches will recover on their own and no pruning is necessary. Broken limbs can be pruned immediately.

It is recommended that an additional layer of mulch be used around your shrubs and trees during the winter. Apply this additional layer of mulch after the first freeze. Mulch reduces the water loss from the soil and reduces the “heaving” of the soil as it freezes and thaws.

Emily L. Revels
Extension Agent
Consumer Horticulture
Cumberland County
(910) 321-6870

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Emily Lucas Revels

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