How To Maintain Your Winter Flower Pots?

Before winter snow and freezing temperatures hit, it is essential to remove dead flowers and dirt from outdoor pots. Store them in a dry place, such as an attached garage or porch, and turn them upside down or cover them with a thick plastic tarp to keep moisture out. In colder regions of the Northern Hemisphere, the flowering season may be over or coming to an end. When growing plants in pots, protection from wind, harsh sunlight, and drying out are concerns.

When using lightweight plastic, foam, or resin pots, top-heavy plants can topple over when hit with strong wind, so be careful to avoid causing winter injury to plants. Be wary of using thin-walled pots and hanging baskets. Care for your winter planter by placing them in a sheltered spot on the patio, where it gets maximum sun and protection from high winds. Brighten up your winter garden with frost-resistant flowering plants, evergreen shrubs, and colorful bulbs for a lively display. Add texture to container gardens with foliage plants like heuchera and water lightly to ensure the soil doesn’t completely dry out.

Water your plants generously during winter, choosing a combination of wintering-flowering blooms, bright berries, and lush foliage. Water in the morning to warm the soil during the day, add moisture-absorbing polymers to the soil to reduce watering frequency, move containers under eaves or cover with burlap for protection from heavy rains, and water thoroughly before a hard freeze to prevent dry soil from wicking moisture from plant roots.

It is best to empty all types of masonry pots and let them rest in an upturned position until thoroughly dry. Move the pots to a sheltered location, wrap them with insulation, and keep your plants moist through winter. Avoid fertilizing and pruning until spring and make sure your containers have drainage holes to avoid seasonal waterlogging. Cover the pots with a mix of 1 part vinegar to 4 parts water and leave them to soak in the mixture for 10-30 minutes or until the build-up is removed.


📹 How to Prepare Plants & Containers for Winter

As cold weather moves in, don’t forget to protect delicate plants and those expensive containers. Joe Lamp’l shares his tips for …


What to do with flower pots in winter?

In order to safeguard your outdoor pots from the inclement effects of winter snow and freezing temperatures, it is imperative to adhere to the following steps: 1) Remove any dead flowers and soil from the pots, 2) Relocate them to a dry environment, such as an attached garage, covered porch, or shed, and 3) Turn them upside down or cover them with a thick plastic tarp to prevent the ingress of moisture. This procedure helps to prevent the freezing and expansion of soil, which would otherwise damage the pots.

What to do with flower pots at end of season?

To ensure the safe storage of flower pots following the summer season, it is recommended that the soil be composted and the pots be scrubbed with warm soapy water. This procedure will prevent the infestation of pests and the proliferation of diseases. It is recommended that the flower pots be stored in a dark, dry location with an ambient temperature above freezing, such as a greenhouse, covered porch, or shed. A covered porch or storage shed is also an optimal location for the storage of pots. Such practices will assist in maintaining the health and longevity of the plants.

How do I protect my pots in the winter?

To protect smaller containers, you can bury the entire pot in the ground and cover it with soil or mulch. Move the pots to an unheated garage, shed, cold frame, or basement, checking soil moisture regularly but not overwatering. Group the pots close together in a protected location, water them, and cover them with straw, compost, shredded leaves, bark mulch, evergreen boughs, or a thermal blanket. Place one or a few pots inside a larger pot or wire enclosure with insulating materials, checking soil moisture. Gradually remove protective covers in the spring to allow the plants to re-acclimate.

How to prepare your pots for the winter?
(Image Source: Pixabay.com)

How to prepare your pots for the winter?

Container gardening is a popular choice for gardeners in mild-winter regions, as it offers year-round enjoyment without the risk of shattered pots and frozen plants. However, container-grown plants face a severe disadvantage when cold weather arrives, as their roots are more sensitive and vulnerable to freezing. To increase the chances of a plant’s survival, experts suggest choosing plants marked as hardy in two zones colder than your area. For example, if you garden in Zone 7, choose perennials, trees, and shrubs marked hardy to Zone 5.

Large containers for plants that must remain outdoors provide increased insulation around the roots. For mild-winter regions, container-grown plants require little or no winterizing, except moving pots to more sheltered locations and covering them with frost blankets when freezing temperatures are expected.

Can pots stay outside in winter?

The absorption of moisture by terra-cotta and ceramic pots can result in the formation of cracks when the pots are subjected to freezing temperatures. Metal, concrete, wood, fiberglass, resin, and select plastic pots are capable of withstanding freezing temperatures without significant damage. However, it is important to note that some plastic pots may exhibit brittleness over time.

How do you take care of pots in the winter?

Growing plants in containers is a great way to add life and color to your garden, especially in patios, balconies, and window boxes. To protect plants from cold, use biodegradable fleece or temporary cover. In wet periods, move plants under temporary cover if the compost becomes sodden. The rain shadow of walls can be sufficient. Remove saucers in winter. Container plants require more care and attention than those grown in the ground. Grouping containers close together near a house wall in winter helps protect roots from cold, and placing saucers or trays under pots during dry spells can reduce water and fertilizer use.

Does pots get worse in winter?

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How do I keep my flower pots from cracking in the winter?

Pots should be placed on a hard surface to ensure proper drainage, not flush with dirt or grass. Raising them on pot feet is better, as water will flow away. Avoid using saucers that collect water, as they can crack when frozen. Instead, keep water flowing through and away from the containers. Turn them upside down and store them in place. To keep water draining, plant a winter container garden, keeping the soil evenly moist. Glazed ceramic pots can stay out all year, and once the mums are gone, a winter container garden can be planted. Winter containers need watering, and root drench them at least once a week.

Do pots crack in the winter?
(Image Source: Pixabay.com)

Do pots crack in the winter?

Pots and planters can crack in cold weather due to excess water in the soil, which expands when frozen. This phenomenon is similar to how water bottles explode when left in the freezer. Without frost-proofing, the freezing water expands outwards, causing cracks. Weatherproofed ceramics and simple tricks can make it safe to set pots out year-round in almost any climate. To frost-proof your ceramics, care for the soil, use the right accessories, and choose the right pot.

Remember that even if pots are resistant to cold and ice, your plants may not be. To control moisture, use lava rocks to drain excess water away from the soil. Rinse them thoroughly before use, as they may contain dye that can cause damage. Place lava rocks at the bottom of your pots, filling about one-fifth of the pot with these rocks to control moisture.

Will glazed pots crack in winter?
(Image Source: Pixabay.com)

Will glazed pots crack in winter?

Flower pots can freeze and crack in the winter due to improper drainage, which can cause water to fill the pot, freeze, expand, and cause the pot to crack. This can be caused by sitting on a flat surface or soil filling the hole and freezing, which blocks water from draining. To prevent this, it is recommended to use Pot Feets, which come in various shapes, sizes, and colors, to raise the pot up off the surface and allow water to drain freely. By doing so, flower pots can be protected from freezing and breaking during the colder months.


📹 How to Winter Protect Plants in Containers

How to Winter Protect Plants in Containers – In this video I go over how I decide how much protection to give plants in my area.


How To Maintain Your Winter Flower Pots
(Image Source: Pixabay.com)

17 comments

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  • I’m in South Australia and overwintering is not necessary here but I watch these articles as it gives me appreciation of how different and difficult gardening is in other parts of the world. The coldest weather I have ever encounted is – 1 degrees…. Celsius very rarely. I can’t even imagine coping with extreme cold weather. I hate the cold. I’m so grateful I live here x

  • Super Important article for me as I was wondering how to deal with an Acer palmatum I just purchased on clearance. Very nice 3 &1/2 ft. lace leaf variety in a 3 gallon container and I was doubting myself on planting it in the ground. I think I made the right choice after perusal this article. Watered it well and mulched about 4 inches (none around the trunk) . 18 degree morning coming here in 7a Tennessee on Tuesday. Thanks for a great article Jim!

  • I’m in Asheville in 6b and am so glad you made this article! I have lots of potted young trees (pawpaws, american persimmon), looking forward to doing nothing. My loropetulum I wrapped in a blanket and hope it survives. So far the lettuce, chard, and leeks seem to have made it under the row covers. One more night of 10 degree weather!

  • Here’s a article idea (because so far I haven’t found the answer). Are plants more or less likely to freeze if they’re in the ground versus in a raised bed vs in a Smart pot vs in a plastic pot? I would think the roots stay warmer in the ground and in the center of larger beds or pots, but would get colder near the sides of Smart pots or pots or raised beds?

  • I’m in New Zealand. I’ve got a camellia that we cut down, poisoned, cut a cross with chainsaw in top of trunk😱and poured poison on. It still grew back. So we’ve twisted two shoots as they grew and let it grow back into a small tree that i lollipop. It’s actually lovely. It was before my love of gardening tho. Love your articles

  • Great timing on winter protection! I do have several potted plants that won’t be put into the ground before they drop all their leaves. Thanks for all the helpful information. Just curious here (I am in zone 7a as well): will it be enough to protect blooming camellias on the covered porch in 29 degree weather? Do you need to give them extra cover to protect the flowers from frost? Also, I don’t have potted camellia at the moment but do have several blooming football mums, and am very interested to find out if they need to be moved inside tonight or a frost cover will do (probably will move the in before next Wednesday anyway). Thanks again for all your work!

  • Hey Jim – another great article, thanks! Learned a lot from these over the past year. Quick Question – I’m in Atlanta (7b) with nearly identical conditions and in the past I’ve lost some 1g perennials that I haven’t been able to plant before winter arrives. Those peat-based mixes seem to stay too wet. Any specific advice for overwintering deciduous perennials like, say, solomon seal or asarum? Should I try and keep the rain of of them? Put them in a temporary trench planted a little high? Thanks man!

  • I had to use leaves 🍁 to mulch everything. All my plants are newer this year.. so they needed protection. Here in Michigan we get in the single digits and below. Last year we had that horrible polar vortex where it dropped down to -20 degrees, it was so horrible I think it even caused damage to one of my boxwoods.

  • I live in MI zone 6. My potted plants are rated zone 5 or 6, and I located them outdoors pot to pot in leaf piles, with cotton frost bags over them, and inside a wind break wall. How often should I water the pots through the winter? Pots are sitting up on flat 2 x 4’s so the water flows out from under and will not freeze to the pots. It will be below 0 degrees F in a few days for a short while. Thank you, Craig.

  • Wow, I’ve never heard of horticultural zones. this is really helpful! Thanks for the tips! I’ve recently really gotten into indoor / porch gardening and have a big potted ming aralia I wasn’t sure how to keep safe as the temperature begins to drop. Apparently Its a zone 11 (I’m in 6b) and will have to come inside. I read it cant survive below 50 but we’re still in that limbo of most days being 60+ with sporadic nights dipping into the 40’s…. Should I wait and just cover the pot and plant until that dip is more consistent?

  • We have some 1 1/2 foot cedars in pots still (from this year) we never planted we like to have them for next year too. We live in Canada in a Zone 3a where it can get very cold anywhere from -10 to -40 with wind chill some days and sunny days. Should we wrap burlap around them top and sides to help them survive the winter.? Or will they not even last?

  • Hi Jim, love the articles. I’m in zone 6a and want to over winter potted thuja green Giants of various sizes from small freshly rooted cuttings, to 1 gallon, and 5 gallon. Also 5 gallon ‘hinoki cypress wells special’ Both are rated down to 5a so I should be able to leave them outside. The snow piles on the small ones gets a bit messy. Is there any possible way to store some in my clear Hoophouse without murdering them? Add vents or is it an absolute no, perhaps have to add a white or shade cloth over the clear? Is there an approximate max high temp to shoot for? The hoop house is new but so far it’s hitting in the 60/70s in day(30 outside) and night temps are equal to outside temp. As more leaves fall off the surrounding trees, inside temps may increase not sure. …fine I’ll be honest, I just really want to find a way to stare at some of these evergreens in the hoop house over the snowy winter, damn this terrible addiction.

  • Hi Jim, not sure what zone I’m in yet. I’m in NY state. From 30 degrees to 5 below 0. It’s now June 27, I’m putting 2 Emerald Green Arborvitae 4 ft in a large wood planter box on concrete. Want to put pink styrofoam insulation in box. Do I need a heater for O degree weather. Can you tell me what to do?

  • I’m in zone 8a. I have some geraniums and Thanksgiving cacus. I’m ordering hanging plant holders for the Thanksgiving cacus in the fall and winter. They were my mom’s and kept in her sun room before she passed away. They are new to me. I also have cats who will try to eat them. So I found out that hanging them indoor during fall and winter is best for them. I am not sure what is best for my geraniums and supertunia. I’ve always left them outside and they come back each year for me.. so far. Is it best to cover their pots to keep the roots warm? Also am I correct about the Thanksgiving cactus? I have 3 and have had them since July. I learned that they turned purple due to too much sun down here.. so next year they will be on my porch with indirect sun.

  • I planted 2 gardenia tree form plants this summer in containers on my screened porch in zone 7b Georgia. They have had yellow leaves in September from all the heat and now have yellow and brown tips. I am tempted to bring them inside the house. What should I do ? The leaves look dehydrated, I water once a week .

  • I’m done 7a and have a few hydrangea in pots. One is a lace hydrangea the others are standards I inherited from my job. They were tossing them after use for seasonal decorations. So I’m not sure of those varieties. They are the usual Pom Pom type. They’ve grown really well this summer so I’d hate to let them get damaged. Can I put them under my patio awning close to the house wall? Is it also true under a tree protects from frost somewhat??

  • We just put the two citrus trees in the garage along with my basil. We are supposed to freeze here in GA but then if you look at the hourly temps it doesn’t get lower than 35. I don’t get it. But I still need to make pesto so I didn’t want to chance it. I have two blueberries in one pretty large pot and not sure if I should separate them. Is it better to wait until spring for that? Or can they stay together for awhile?