Why Do Plants Need Snow?: How Snow Helps Plants to Survive Winter in the Northern Hemisphere

Snow cover can actually be quite beneficial for the trees & shrubs in your landscape.  Snow provides insulation from cold temperature extremes, in much the same way that igloos protect their inhabitants.  Snow can also help reduce dessication, or the loss of moisture, especially in evergreens.  Yes, even in the cold months of winter, drying winds evaporate moisture from the needles and foliage of evergreens.  Frozen soil prevents plants from replacing the moisture and “winter burn” injury can occur.  As spring approaches, and snows begin to melt, moisture is provided to help new growth expand.  Of course, there are some negative aspects of snow cover as well.  Large amounts of heavy, wet snow can bend and break tree branches and entire shrubs.  Generally, the more snow we get brings with it increased use of deicing salts which also lead to moisture loss and “winter burn” injury in plants.  Check out the link below to learn more.

Why Do Plants Need Snow?: How Snow Helps Plants to Survive Winter in the Northern Hemisphere.

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