But the ground froze before we could prepare the planting hole.

Don't mulch plants until the ground freezes two inches down.

But what would happen when the ground froze again?

When the ground freezes a couple of inches deep, apply mulch.

But don't mulch your beds until the ground freezes: you want to keep the cold in, not out.

By 15 November 1941, the ground had finally frozen, solving the mud problem.

We always have to enlarge the pit, which is hard because the ground has frozen.

Dig a hole before the ground freezes if you plan to buy a living Christmas tree.

After two weeks it started snowing and the ground froze.

Unprotected ground froze quickly, so no more water could penetrate.