The vine will die to the ground, but the roots will live as long as the soil doesn't freeze too deeply.

Leaves rustled slickly; the soil beneath was firm but not frozen.

In geology, the frost line is the level down to which the soil will normally freeze each winter.

Because the top soil freezes in the winter, they cannot burrow underground then, so they live under the snow during the colder months.

Remember soil in the Northeast often freezes to a depth of several inches.

Despite frigid air, soil won't freeze hard for weeks, so there is still time to plant spring flowering bulbs.

And since the soil there usually doesn't freeze until December, there's some available for repairs.

Plants in big containers stand a better chance of surviving winter than those in small pots, because the soil freezes more slowly.

Simply cover the ground where your bulbs are planted with loose packing materials after the soil has frozen.

The protected soil doesn't freeze, though at night temperatures drop and plants droop.