How to Protect Plants From Frost

Frost causes damage and destruction to unprotected plants.

Frost develops when water vapor converts into solid ice at 32 degrees Fahrenheit. The solid ice forms on the plant's leaves and stems, preventing it from receiving water, nutrients and heat, causing the plant's demise. To ensure the survival of the plant during periods of frost, the plant must retain or raise its temperature and moisture levels. This is accomplished by adding a material cover and organic mulch.

Things You'll Need

• Organic mulch
• Rubber mallet
• 4 metal stakes
• Frost-resistant cover
• Rocks
• Pruning shears
• Garden hose

Instructions

1. Add a 2- to 3-inch layer of organic mulch, such as straw or bark, around the plant's base to retain the soil's heat and moisture. Mulch the plants in early fall before the first frost.

2. Use a rubber mallet to pound four metal stakes into the ground, creating a square around the plant. The stakes should be at least 3 to 4 inches taller than the plant.

3. Cover the stakes and plants loosely with a breathable, protective fabric cover that is frost resistant. Hold the fabric cover down with rocks. Leave the cover on until the middle of spring to ensure the last frost has passed.

4. Remove the fabric cover. Prune old foliage using pruning shears and water plants regularly with a garden hose.

References

• Encyclopedia Britannica: Frost
• Sunset; Protect Plants from Frost; Julie Chai
• Gardening Know How; How to Protect Plants From Frost Damage; Nikki Phipps