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• n  upthrust of ground or pavement caused by the freezing of moist soil

• frost heave

News & Articles

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• It's Time to ...
  Check plants for frost heaving. Extreme changes in winter temperatures, with freezing followed by thawing and freezing again, often cause woody and herbaceous plants to rise up several inches out of the ground. Take a good look to see where this might have occurred. As roots become exposed, they can dry out and need your immediate attention.
  April 19, 2014 - The Philadelphia Inquirer