Gardening in the zone 3 climate requires a close eye on spring and fall temperatures and a plan on how to protect plants from frost when the unavoidable early and late frost hits. Where I live, I have seen frost damage my spring plants as late as the middle of June. If pants are lost this does not leave enough time for most varieties of vegetables to start over. Here are some great options for how to protect plants from frost during temperature dips.
Covering plants with buckets is a classic DIY trick for protecting vegetation from frost and cold weather. While commercial plant covers work well sometimes all you need is a spare bucket from your garage to shield tender plants from icy conditions.
In this article, we’ll explore the pros and cons of using buckets as emergency covers, techniques to use them effectively, and other potential household items that can be substituted if buckets aren’t available. Read on to learn everything you need to know about this simple frost protection strategy
Why Buckets Make Great Improvised Plant Covers
Standard plastic buckets offer many advantages when you need to quickly protect plants from plummeting temperatures
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Availability – Most homes already have spare 5-gallon buckets on hand for various uses. No need to run to the store for supplies.
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Portability – Lightweight buckets are easy to carry and place over plants right before temperatures drop.
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Durability – Tough plastic withstands cold, wind, rain and snow better than delicate row covers or fabrics.
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Insulation – Plastic provides more insulation against cold than sheets or towels. The enclosed bucket space traps heat.
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Moisture barrier – Plastic buckets prevent frost formation on leaves by blocking moisture. This protects foliage.
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Roominess – Buckets easily fit over larger plants without collapsing, unlike loose fabrics.
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Reusability – Sturdy buckets can be used repeatedly over many seasons if cared for.
In a pinch, it’s hard to beat the versatility of a simple plastic bucket when it comes to protecting your plants.
Tips for Effectively Shielding Plants with Buckets
Follow these tips to get the best results when using buckets:
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Choose buckets 2-3 times wider than the plant to allow ample airflow.
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Nestle the bucket over foliage and press soil around the rim to seal it. Avoid compressing leaves.
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Weigh the bucket down with a rock, brick or stake so wind doesn’t blow it away.
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Remove buckets in the morning once frost danger has passed.
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Allow plants to re-acclimate before re-covering in the evening.
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For tall plants, use large buckets or drums. For small plants, use inverted nursery pots.
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Group buckets over clusters rather than individual buckets for each plant.
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Drill small drainage holes near the base if rainwater collects inside.
Proper preparation is key to effectively protecting your plants with DIY bucket covers.
Other Household Items that Can Double as Emergency Plant Covers
If spare buckets aren’t available, these common household items can also shield plants in a pinch:
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Plastic containers – Wash tubs, storage bins, crates and boxes can cover plants when flipped upside down.
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Flower pots – Inverted clay or plastic pots of all sizes work well.
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Cloches – Make improvised cloches from plastic jugs, bottles or containers with bottoms cut out.
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Baskets – Weave baskets anchored with stones shelter low-growing plants.
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Blankets – Gently draped blankets anchored with stones provide insulation.
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Cardboard – Use boxes, sheets or tubes to tent over delicate vegetation.
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Towels – Terry cloth traps heat effectively when draped over plants.
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Tarps – Lightweight poly tarps can be made into tents to cover rows.
Don’t limit yourself to just buckets – utilize whatever household items you have on hand when cold hits unexpectedly!
When to Use Emergency Bucket or Container Covers
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Cover plants when temperatures are forecast to dip to around 32°F or below.
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Add covers in the late evening when frost begins forming. Remove them in the early morning.
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Prioritize sheltering the most vulnerable plants first, like recent transplants, seedlings, potted plants and tropicals.
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Ensure covers are removed daily so plants get sufficient sunlight and airflow.
Proper timing is critical when using improvised covers like buckets. Pay close attention to weather forecasts.
Other Frost Protection Tips Beyond Bucket Covers
While buckets provide effective, low-cost protection, other techniques can further shield plants when combined:
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Add insulating mulch around plant bases to protect roots and soil.
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Water soil 1-2 days before a freeze; moist ground holds heat better than dry ground.
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Cover beds with breathable row cover or horticultural fleece for added insulation.
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Place strings of outdoor lights under covers to generate extra warmth.
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Move small potted plants into protected areas like sheds, garages or indoor spaces temporarily.
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Select cold-hardy plants bred to withstand frosts and freezing.
Take a multi-pronged approach to safeguard vegetation when the mercury plummets.
The Bottom Line – Should You Cover Plants with Buckets?
Overall, plastic buckets make excellent improvised covers to shield plants from cold damage quickly and easily. They are inexpensive, portable, and get the job done in a pinch. However, buckets alone may not provide enough protection for harsh freezes. Combining bucket covers with other insulating methods provides better assurance your plants stay safely protected when Old Man Winter comes calling.
Just remember to allow air circulation, remove buckets daily, and avoid overheating plants. With the right emergency preparations, your garden can survive surprise cold snaps and frosty nights!
So don’t hesitate to use what you have on hand – grab those spare buckets and get covering! Protecting your precious plants from frost doesn’t require fancy solutions. A little bit of DIY ingenuity with common household items is often all you need.
What Garden Plants are Least Susceptible to Frost?
Not all your garden vegetables will be harmed by a light frost (0°C to -3°C or 32 to 25 F temperatures). Cool hardy plants that can withstand a light frost include:
If the above plants were started indoors and transplanted to your garden in the past two weeks, I would suggest covering them to be on the safe side. If they have grown from seed in your garden they will most likely be fine and will NOT need to be covered during a light frost.
5 Ideas on How to Protect Plants from Frost During Freezing Temperatures
Select at least one of, or a few of these options to protect plants from frost. If the forecast is even 5 degrees off a frost, I cover my plants.
When you see anything within two degrees of freezing, take measures to protect your plants from frost, to stay on the safe side.
Water holds heat and well watered plants are less vulnerable to frost.
Use large plastic plant pots to place over your plants to protect them from frost. Another idea is gallon milk jugs with the bottom cut out and placed over your plants. Try to be careful not to let any of the leaves be touching the plastic.
If you have already done step 3, the plastic pots will protect the blanket from crushing your plants. Other options for holding blankets off plants are tomato cages or garden stakes. Dont forget to take the blankets off in the morning once the low temperatures have passed.
If your plants are in a container you are able to move, bring them inside to your house or garage to protect them from frost.
Some also suggest placing a bottle of warm water close to your plants. I have not done this myself as the above measures have always been enough, but if you have plants you are particularly worried about, this extra measure may be beneficial.
DIY frost protection for plants using boxes and buckets.
FAQ
What is the best thing to cover your plants with?
Mulch is great for covering the base of the plant. Bed sheets or comforters work best for covering large plants and shrubs.Nov 4, 2021
Can I cover plants with plastic containers?
A simple cover can significantly reduce cold damage when temperatures are in the mid to upper 20s. Plastic is lightweight and easy to use.Dec 30, 2017
At what temperature should I cover my potted plants?
Once temperatures drop below 40°F, you may want to start covering your plants with a frost blanket depending on what you’re growing, which we’ll get into in …May 28, 2022