hard frost
heavy frost

The best time to cover them is after the first hard frost.

The next day there was a harder frost than before.

"We let the whole top get hit by hard frost," he added.

If we climb up into a hard frost, we're dead men.

We'll have a few insects, perhaps, until first hard frost.

Flowering never stops from May to the first hard frost.

With a hard frost, the plant will die down to the ground and grow back the following spring.

Leave the best until after a hard frost, when they sweeten up.

The epidemic ended with the first hard frost in November.

Nor hard frost, either, we're on the edge of it.

After the first hard frost would come the cricket holocaust.

Hard frosts are not unheard of during the summer months.

The first hard frost, and the crickets would be dying.

Whatever the reason, however, cloves should be planted right about now - to leave a few weeks before the first hard frost.

In England, if there is a hard frost, for example, people are unable to pay their bills.

Pick the squash before the hard frost and keep it indoors for a month.

They have to be dug up, after the first hard frost, and stored indoors.

Lesson number one, don't open the windows when there's a hard frost, he told himself.

We shall have a hard frost tonight or I'm no judge of weather."

Some individuals retain their leaves all year unless a hard frost strikes.

When the hard frosts began they could draw off all, and still have enough stone in store to work through the winter.

After the spell of hard frost, the weather had slackened.

Hard frost and an east wind again, no season to be on the roads.'

Allow it to grow in a cool, sunny place until the danger of hard frost is past.

By the first hard frost, they are ready for freezing temperatures, and to begin the second stage of their preparation.

There had already been a heavy frost the night before.

The windows of the car were covered by a heavy frost.

The rose garden will not close down until the first heavy frost, which could happen next week or in two months.

The last time we had a heavy frost, most of Britain closed.

A heavy frost had fallen overnight, but not much snow.

I think there'll be a heavy frost in the morning, though the stars are amazingly bright.

The weather was extremely cold, a heavy frost covering the surface of the earth.

Potatoes are sensitive to heavy frosts, which damage them in the ground.

If growing the plant indoors is not appealing, another trick can be done before heavy frost.

It will not tolerate long periods of dryness or heavy frost.

After heavy frosts the roots may have lifted or loosened.

There would be a heavy frost before morning.

If the ice is thick, it's a heavy frost.

In Korolev, there was a heavy frost on the ground every morning.

Trees and shrubs are infrequent due to heavy frost in the winter months.

The lawn was shiny with moisture, promising a heavy frost overnight.

Heavy frosts may kill the fronds, but plants recover quickly.

It was exceptionally cold with a heavy frost.

Everywhere a heavy frost was forming, accelerating the process of crystallization.

Fog and heavy frosts are common in the winter while snow is a very rare occurrence.

They looked at a sea of torn and furrowed mud already glistening with heavy frost.

There was no more snow but plenty of wind and rain and occasionally a heavy frost.

If a heavy frost is forecast, bring the wreath in at night to prevent the flowers from browning.

The weather had turned cold, and the long-retired Viceroy feared a heavy frost.

There had been a heavy frost last night and some of it remained on the lawn, an arc that the sun hadn't reached.