9 ways to protect your plants from frost — and help them survive the cold season
With November well and truly underway, there’s still plenty of jobs to do in your yard. Apart from raking leaves to protect your lawn and planting tulips for spring color, there’s another job that needs to be done this month.
As temperatures start to plummet and we experience cold snaps, your plants will need protection from the big chill. If you leave your plants to deal with frost and icy conditions without any support, they may not survive into next year.
Taking steps now to protect your plants from frost will help them withstand harsh weather, giving them a greater chance of success when the temperature improves.
“Frosty conditions can be a gardener’s nightmare if they’re unprepared, but keeping an eye on the forecast and putting some simple measures in place can make all the difference,” says Chris Bonnett, owner at Gardening Express.
Here, he shares 9 tips to protect your plants from frost so you can enjoy them next year.
1. Plant fleece
While we wrap up in blankets and throws to keep cozy inside, and rely on smart thermostats to keep the temperature just right, your plants are left to their own devices to beat the chill. But according to Bonnett, you can protect your plants from the cold with its own type of blanket.
“Plant fleece is a lightweight fabric designed for protecting plants in harsh weather. Typically, they should be used for a short period of time rather than for the whole day,” says Bonnett.
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And if you’re looking for an inexpensive option, he says thin bed sheets will work too.
This frost protection cover measures 10ft x 30ft and acts as a blanket to protect your outdoor plants in winter. The light material allows air, moisture and light to reach the plants, while protecting them against the big chill.
2. Mulch
Another way to protect your plants is to use mulch. “Keep on top of regular mulching to keep plants warm during winter," Bonnett says. "Scattering thick organic material around the plants will keep the moisture in the ground.”
If you’ve raked up lots of leaves this fall, you can repurpose them by layering them around your plants to keep them warm.
3. Warm water bottles
It might seem a little extreme, but Bonnett also suggests using warm water bottles around your plants to quickly melt the frost. “Repeat this step morning and night to help your plants survive the frosty weather,” he advises.
So, start collecting your used plastic bottles and recycle them by filling them with hot water and placing them around your plants to melt the ice.
4. Clear plastic bags
From plastic bottles to plastic bags. “Covering plants in zip-up plastic bags keeps the frost from having any close contact and helps retain a healthy amount of moisture,” says Bonnett.
The 'zip-lock' seal on the bags makes them easy to secure around your plant without getting tied up in knots. "Make sure to go for clear plastic bags so you can keep an eye on their condition,” Bonnett adds. He also advices against keeping them on your plants all the time.
5. Regularly wipe off frost
It may seem a bit extreme, but Bonnett says if you keep noticing frost resting on your plants each morning, they could do with a dusting.
And his method to remove the frost? “Grab a microfiber cloth and gently wipe it off to prevent it from sinking in and damaging the plant cells,” he says.
6. Bring the plants inside
Just as we all spend more time inside in the colder months, Bonnett says more vulnerable plants will benefit from the same treatment, as they can be harmed by winter frost.
“Plants such as Sansevieria and dahlia thrive indoors; you can even place them on windowsills so they can still catch some natural sunlight,” he suggests.
7. Using buckets
Another option Bonnett suggests is to turn buckets upside down to cover plants and prevent frost from taking over. He says it's best done on particularly frosty nights. “Don’t leave them on for more than a day, as the trapped water underneath can cause fungal diseases in the plants,” he warns.
8. Bubble wrap
There’s nothing quite as rewarding as popping bubble wrap, but don’t get too carried away before you protect your plants!
“Bubble wrap is an inexpensive way to protect your plants and it offers a good level of insulation,” says Bonnett, adding that an alternative is plant fleece, as mentioned above.
Apart from protecting fragile items, bubble wrap can be used to keep your outdoor plants safe from winter frost. This roll of bubble wrap measures 12 inches x 175 ft, giving you plenty of scope to protect your plants.
9. Don’t trash damaged plants
If you notice a plant has been damaged by frost, all is not lost.
“Regrowth tends to happen once the plants are back in warmer temperatures,” says Bonnett, “so if you notice frost is causing damage — take them inside until they’re looking healthier.”
There’s no need to toss your plants; they may just need a little longer to recover.
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Camilla is the Homes Staff Writer and covers everything to do with homes and gardens. She has a wealth of editorial experience, mounting over 30 years, and covers news and features, tests products for reviews and compiles buying guides.
Her work has appeared in business and consumer titles, including Ideal Home, Real Homes, House Beautiful, Homebuilding & Renovation, and Kitchen & Bathroom Business. She’s even appeared on the cover of Your Home, writing about her own house renovation.
Although she’s obsessed with decorating her home, she also enjoys baking and trying out the latest kitchen appliances. But when she’s not inside, you’ll find her pottering about in her yard, tending to her vegetable patch or taking in her prized hydrangeas.
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