In all honesty, you could probably just let hardy outside plants take care of themselves during the winter, and they’d probably be fine. (Can you tell that I practice pretty laissez-faire plant parenting?) However, if you’re a superb plant parent, follow these simple instructions to ensure that your outdoor plants have the most relaxing winter hibernation ever.
Know Your Plants
You should first inventory all of your current plants. Determine which plants are annuals and perennials, if you don’t already know. Annuals have a single growing season and won’t return after the winter. Common annual flowers that can be easily removed and composted include geraniums, sunflowers, marigolds, and zinnias.
Bring any tropical or subtropical plants inside as well. Even though they may thrive outdoors in the summer, ferns and palms aren’t sturdy enough to endure winter conditions like snow and freezing temperatures. Just be careful to inspect them for bugs before you bring them inside, or else you run the risk of having bugs infest all of your other plants (a mistake I’ve made several times).
How can plants be kept alive outside throughout the winter?
I’ve only recently started gardening in the winter, so I was concerned that the cold would kill my plants. This is the result of some time I invested in research and testing several ideas.
You must give outdoor plants enough of water if you want them to survive the winter. Mulch the soil after it has been watered to keep the moisture and warmth in. To avoid frost, cover and enclose the plants as needed.
Different plants will require different care, and there are proper and wrong ways to go about it. If you follow the appropriate instructions, keeping your plants alive during the winter is not difficult.
Can I keep potted plants outside over the winter?
Clean up any empty pots before storing them as the first step in winterizing the container garden. Clay and terra-cotta pots should be kept dry and upside-down or on their sides. Most terra-cotta pots shouldn’t be left outside in frigid weather because they could crack or break because they are constructed of porous clays. Choose terra cotta pots made of special clay that can withstand freezes if you must leave them outside (like Impruneta, for example). Terra-cotta pots typically do not hold up as well to freezing as glaze-coated pots, which are typically fired at higher temperatures.
Wrap the sides of planted terra-cotta and glazed containers with layers of bubble wrap or burlap coated in plastic to keep them safe when left outside.
Once the plants go dormant and their water needs are reduced, wrap them to prevent them from absorbing any more moisture. (Wrap containers holding
After the first hard frost, wrap evergreen plants in plastic.) If you have empty concrete, cement, or clay pots that are too heavy to move, clean them as thoroughly as possible.
In order to avoid water from building up within the pots, freezing, and cracking them, fill them as much as possible and cover them with lids or plastic sheeting. Although certain plastic pots may shatter if the soil inside expands during freezing temperatures, sturdy plastic and fiberglass pots are perfect for leaving outside. Durable hardwood-made wooden containers are also appropriate and will deteriorate gracefully over time.
In the winter, should you cover outside plants?
While some people will haphazardly cover a shrub, Reeves said that is probably not the best course of action.
The edges of the cover you select should be firmly fixed to the ground instead. For this, you can use rocks, firewood, or bricks.
Even though the leaves appear to be scorched, hold off on pruning shrubs until April. Walter Reeves contributed a piece.
Because their roots are not in the ground, container plants are particularly susceptible to the cold. Plants should ideally be relocated inside a garage, shed, or basement. Put them close together and cover them if you’re going to leave them outside. To keep the containers warm, wrap them in plastic or burlap.
Perennials and newly planted trees and shrubs can be shielded from the cold by a coating of mulch. Mulch serves to add an additional layer of defense against the soil’s ability to drive some shallow roots out of the ground as it freezes and thaws, making them even more vulnerable. To prevent rot, just be sure to keep the mulch a few inches away from the plant.
Wrap the trunk of any young trees or trees with thin bark (such as some fruit trees) with a trunk wrap. Otherwise, the bark can crack because it swells in warm weather and shrinks in cold weather.
How come my plants are all dying in the winter?
Given their extended lifespan, you were undoubtedly very disappointed to learn that your perennials died during the winter. However, planting a perennial doesn’t guarantee success, especially if you reside in a region where the ground frequently freezes. While your plant is dormant, a few things can go wrong, including:
- Cells that produce ice crystals. Plants make a valiant effort to prevent themselves from freezing by concentrating solutes like sucralose to lower the freezing point inside their cells, but this is only successful up to about 20 degrees F. (-6 C.). After then, the water in cells can actually freeze into crystals that pierce the membranes of the cell walls, causing extensive damage. Plant leaves frequently acquire a water-soaked appearance when the weather warms and quickly turn dark. This kind of injury to the plant’s crown may prevent it from ever waking up to show you how badly it has been hurt.
- development of intercellular ice. Many plants develop proteins that help prevent the formation of ice crystals in order to protect the gaps between cells from the winter weather (commonly known as the antifreeze proteins). Unfortunately, when it becomes really cold, this isn’t a guarantee, much like with solutes. Water becomes unavailable for the plant’s metabolic functions when it freezes in that intercellular space, which results in desiccation, a form of cellular dehydration. Although desiccation is not a guarantee of death, the force is undoubtedly at work if you notice a lot of dried-up, tan edges on your plant’s tissues.
If your plants are still dying in the winter even though you live in a place where it never freezes, they might be getting too much moisture when dormant. Inactive, wet roots are particularly vulnerable to root rot, which, if unchecked, swiftly spreads through the crown. If your plants’ dormancy in warm weather appears to be a recurring death sentence for them, take a close look at your watering procedures.
In the winter, what should I do with my plants?
The easiest time of year to kill a houseplant is definitely during the winter. Houseplants are put to the test by harsh growing conditions like low light levels, dry air, shorter days, and frigid temperatures.
Making care routine adjustments to accommodate seasonal growing circumstances is the key to ensuring that plants survive the winter. Review the fundamentals to provide your indoor plants with the best care during winter.
Winter causes the sun to set later in the day, which results in a 50% reduction in light levels near windows. During the winter, indoor plants that thrive near a sunny eastern or northern window during the summer may require a southern or western exposure. Similarly, plants near windows in the west or south that require filtered light in the summer might be able to endure direct sunlight in the winter.
To aid plants in adjusting to shifting light conditions:
- If it’s possible, move plants nearer to the windows.
- Window cleaning will maximize light transmission.
- For the winter, move plants to new areas next to windows with more light.
- Cleanse plants to allow leaves to utilize the light that is available to the fullest.
- Add synthetic lighting. Fluorescent lights are sufficient. They generate less heat and are less expensive than conventional grow lights. For best results, place bulbs 4–12 inches away from plants.
Tropical plants, which make up the majority of indoor plants, like daytime temperatures of 65 to 75 F and nighttime temperatures of around 10 F lower. Low temperatures (below 50F) can be problematic for many plants.
In order to make the thermostats more comfortable for you, keep in mind that your plants also require some thought.
- Keep plants away from heat sources and cold gusts.
- Maintain a few inches of space between plants and external windows.
- Plants should be moved away from windows at nightfall in cold climates if windows freeze over at night. Additionally, you may tuck a thick shade or another insulating item between the plants and the glass.
In the cold, homes might only provide 5–10% relative humidity. Houseplants prefer 40–50%. Brown leaf tips and the presence of pests like Spider Mites are indicators that plants are being stressed by low humidity. Learn how to increase the humidity around plants in simple methods.
Overwatering is the most frequent issue that indoor plants encounter throughout the winter. 95% of indoor plants require the soil to almost totally dry out before watering. How do you determine whether plants need water?
- Don’t only test a small area of the soil’s surface. When the root zone is dry, plants require moisture. Insert your finger up to two inches into the ground. Water the soil if it’s dry.
- Pick up the pot. When soil gets dry, it becomes lighter. Lift pots right away after watering to feel the texture of the moist soil.
- Plants won’t need water as frequently if winterized rooms are humidified. Water must be added to dry air.
- The only exceptions to this rule are citrus and ferns in pots, both of which require continually moist soil. If you are uncertain, always do your research.
Never let plants sit in water that gathers in the drainage saucer overnight when you water.
Fertilize plants all winter long in mild climates. Winter fertilization of indoor plants is not recommended in the coldest climates with little natural light. When springtime outside plants begin to grow, fertilizer can be resumed.
In the spring and summer, when most indoor plants are actively growing, is the ideal time to repot them. Potted woody plants that entirely hibernate in the winter are the exception. Transplant those in the early spring before the buds break.
- Numerous advantages of houseplants include bettering indoor air quality and lowering sickness rates.
Where should I keep my plants during the cold months?
Making space for the plants is the first step in how to keep plants alive throughout the winter (by overwintering plants in pots indoors), which is occasionally easier said than done. Even if you may have enough space in some parts of your home, plants may start to deteriorate if they don’t get enough light.
Install some hanging basket hooks or shelves in front of light-filled windows before bringing plants indoors. An above winter garden will prevent plants from taking up valuable floor space.
A key to keeping plants alive over the winter is giving them the warmth and humidity they require in addition to giving them enough light while they are indoors. The plants could suffer if you position the pots close to a heating vent or a drafty window because of the temperature changes.
Set the pots on top of stones in a tray or dish filled with water, keeping the water level below the base of the containers, to improve the humidity around plants.
When the season is over, what should you do with your potted plants?
Ten things to do:
- 1.) Don’t just clean, “sanitize.
- 2. Remove the dead materials.
- 3. Cut off the wilted perennial flowers.
- 4.) “Put compost on top of the gardens.
- 5. One final grass cutting.
- 6.) Apply lawn fertilizer.
- 7.) Guard the delicate material.
- 8. Examine the mulch.
Will cardboard boxes guard against frost on plants?
In high school, I worked at a supermarket shop. To my mother’s dismay, one lesson that stuck with me was about brown bags’ thermal characteristics. We transformed brown grocery bags into beer refrigerators. They could hold ice for up to 24 hours when opened up inside of one another and were disposable. The greatest frost protection for your outside plants is either free or inexpensive, in my experience. When the season is through, cardboard boxes and brown shopping bags may be repurposed and make the ideal frost cover.
When a frost is predicted, I just place one of the boxes I keep on the patio over the plant. If you want a quick supply, packing boxes from Home Depot cost about a dollar; alternatively, you can buy empty ones from shops. Many upright plants just require protection for the growing tip. Slip over columnar cacti, Madagascar palms, etc. by opening three to four large brown grocery bags inside of one another. For reuse and storage, fold them.
These straightforward, affordable, and efficient frost shields also respect the environment.
Around my home, both in the ground and in pots, there are many agave plants. I have over 30 different species; it has become a habit! I have a good understanding of agave snout weevils. My issue right now is not that.
I’ve noticed over the past few months that many specific plants appear to be “sick.” With some white powder or flakes scattered throughout, the hue of the core spike turns off-white and yellowish. Eventually, the white powder or flakes and the base both turn yellow.
It appears that mealybugs have attacked your agave plants. Some treatments include removing the sickest plants from the others, spraying the plants with insecticidal soap or water, or cleaning them with a jet of water (follow label instructions). Because of the intense monsoon wetness, we are observing more mealybug evidence this year. The Starr Urbatsch agave collections manager advises, “Keep air circulation around your plants.”
I read you every week, reader remark. Help! The Valley is experiencing a dilemma with our unskilled landscapers and tree trimmers.
Everywhere we look, these men are “penciling” our palms. How can we prevent the catastrophe from growing worse?
My heart broke when I read your article from December 6 in The Republic about a Spanish Colonial home in the F.Q. Story area that included an image of a palm tree. This lovely old house has a tree that has been killed and is now badly damaged.
If you drive to Mesa, you will see a history of the horror of penciling one mile long of palms penciled throughout the years between the 5000 and 4000 block of East University (south side). There are rows of dead, topless “hour glass” trees as reminders of what this method accomplishes.
Are plants protected from freezing by a sheet?
QUESTION: Fabric or plastic is the best material to use as a cover to shield outside plants from the chilly air.
When the temperature drops low enough to cause the moisture on plant leaves and buds to freeze, the threat of frost typically materializes overnight. To protect plants from frost, you will need to cover them to keep the moisture from freezing. It’s crucial to utilize the proper materials, even though an unexpected cold can leave many gardeners racing to find something to cover their sensitive plants.
It is ideal to use a cotton covering because it will let moisture out while yet shielding your plants from cold. Fabric coverings will both capture the heat that is radiating from the ground and stop the freezing air from coming into direct contact with the wetness on the plant. Large plants and shrubs are best covered with bed linens or comforters. Newspaper can be used to low-growing vegetation, but it can frequently be challenging to make it stay put. I have recycled old towels, sheets, and even cardboard boxes as well as pillowcases. Whatever you choose to use to cover your plant, just make sure the canopy traps the warm air within and extends to the ground.
You can use plastic, but it’s crucial to remember that you shouldn’t let it touch your plants. Because it can hold moisture against plant tissues and worsen freezing damage, plastic that comes into contact with your plants is frequently much worse than no protection. For their frost-sensitive plants, many gardeners will frequently install high stakes or forms so they can cover them and secure them without worrying about the coverings blowing away at night or harming the branches. As long as the plastic won’t come in contact with the plant in any manner, it is acceptable to cover a structure like this with plastic.
And keep in mind that the more cover layers there are, the better the insulation is. So, feel free to cover priceless or delicate plants with more than one cover, especially during really cold temperatures. You may, for instance, cover the plant with a sheet of plastic and then an old blanket.
Whatever method you choose, it’s crucial to remove the covering as soon as the risk of frost has gone so that the plant can absorb light and to avoid heat buildup when the sun comes out.