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How to Protect Plants from Frost

easyGardening30-60 minutes7 steps

Safety Warnings

  • Ensure blankets or covers do not touch foliage directly if possible to prevent rot
  • Ventilate cold frames properly to prevent fruit from rotting

Tools Needed

stainless steel hand trowelfor lifting bulbs and applying soil
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bypass prunersfor cutting back bulb tops
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Materials

strawclean, coarse grade(as needed for mulching)
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heavy blanketsfrost-protective fabric(as needed for coverage)
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Steps

1
Prepare soil and plant placement by avoiding frost pockets where late killing frosts accumulate.
Tip: Avoid low-lying areas where cold air settles.
2
Protect tender plants by hanging blankets over them during cold nights.
Tip: This allows fruit to ripen perfectly even as temperatures drop.
3
Apply a mulch of leaves, straw, or rough material to garden beds, such as strawberry beds.
Tip: Spread the material lightly to insulate the roots.
4
Winterize canes by 'laying them down'—bending them near the soil and securing the tips with a shovelful of earth.
Tip: Cover the entire length with soil or rough manure only when freezing weather is imminent.
5
Utilize cold frames by placing unripened fruit on clean straw and using a sash to keep out the frost.
Tip: Keep the frame well-ventilated to prevent rot.
6
Protect bulbs by lifting them into pots or boxes and moving them indoors if fall frost is feared.
Tip: Store bulbs in temperatures between 45° to 50°.
7
Create an insulation layer for wintering onions by spreading 18 inches of straw on a dry floor, adding onions, and covering with another 2 feet of straw.
Tip: This prevents sudden temperature changes.

Pro Tips

  • Remove mulch from canes before new growth starts in the spring.
  • For bulbs, cut tops to within 2 inches of the apex before curing in sun and air for a week.

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Sources

Synthesized from 11 verified sources:

Gutenberg: War Gardens GuideView →
Gutenberg: Manual of GardeningView →
Gutenberg: Home Vegetable GardeningView →
Cornell ExtensionView →
Gutenberg: A-B-C of Vegetable GardeningView →
Gutenberg: Farm Gardening GuideView →
Old Farmer's AlmanacView →
Old Farmer's AlmanacView →
Old Farmer's AlmanacView →
Old Farmer's AlmanacView →
Old Farmer's AlmanacView →