It is often necessary to provide extra attention to plants in the fall to help them over-winter and start spring in peak condition. Return to Table of Contents Desiccation Desiccation, or drying out, is a significant cause of damage, particularly on evergreens.
Desiccation occurs when water leaves the plant faster than it is taken up.
Several environmental factors can influence desiccation. Needles and leaves of evergreens transpire some moisture even during the winter months. During severely cold weather, the ground may freeze to a depth beyond the extent of the root system, thereby cutting off the supply of water. If the fall has been particularly dry, there may be insufficient ground moisture to supply the roots with adequate water. Water loss is greatest during periods of strong winds and during periods of sunny, mild weather.