What Temperature Do Succulents Freeze

For succulent plants, temperatures between 30 and 40 degrees Fahrenheit present some serious concerns. Plans for succulents are in danger at 40 degrees Fahrenheit since it is the moment at which they will start to change color, and when they go close to freezing, they will start to develop frost and rot. Soft succulents cannot tolerate cold; at 40 degrees Fahrenheit, the leaves and other elements of the plant will become covered with frost.

Risk at Temperatures Between 30- and 40-Degrees Fahrenheit

In colder than 40° Fahrenheit temperatures, succulents are susceptible to freezing. Once the temperature drops to 40 degrees Fahrenheit or less, your succulent plant will start to change colors. At that time, the plants will start to approach their freezing point and start to die if you don’t shift them into a warmer environment.

Your succulent plant will start to freeze if it is exposed to temperatures below 40 degrees Fahrenheit. When your succulent reaches 40 degrees Fahrenheit, there is only a brief window of time before it freezes. Before it gets to 40 degrees Fahrenheit, succulents, especially soft succulent varieties, should be taken inside.

Succulents will exhibit some noticeable color changes as they approach their freezing point if they are not placed in temperature-controlled conditions at 40 degrees. Up until ice crystals begin to form on the plant’s leaves and other parts, the colors will deepen and become more vivid. The amount of frost that forms on the leaves and soil of the succulent plant increases the longer it is exposed to colder temperatures. Before it dies, the plant will start to exhibit rot symptoms and a black or brown discoloration.

Temperatures Below 32 Degrees Fahrenheit

Succulent plants can withstand temperatures as low as 32 degrees Fahrenheit. At this temperature, succulent plants cannot survive and start to freeze and wither away. To keep outdoor succulents alive over the winter, move them inside into pots or other potable containers.

Bring the plant into a warmer location right once if you notice little ice crystals starting to form on its leaves. It will be more difficult to resuscitate the plant after it is in a warmer environment if you don’t bring it inside once ice crystals start to develop on its leaves. The majority of succulents cannot resist frost; if they are, they will start to deteriorate and eventually perish. Succulents that can’t tolerate frost should be brought inside at night to prevent death.

Changes in Your Succulents at Extreme Temperatures

The most obvious alteration in succulents subjected to extreme temperatures, whether high or low, is a change in color. Succulents’ colors will start to deepen once the temperature reaches 40 degrees Fahrenheit, and they will start to look dull and wilt as the temperature approaches 32 degrees Fahrenheit, their freezing point.

Succulents can also change color by developing brown or black spots on their leaves or other plant components. Too-cold conditions cause plant cells to break, giving the appearance that they are rotting. You may have left your succulent at a temperature that is too low for it to remain healthy if the leaves or any other part of it starts to turn a dark brown or black hue.

How cold should it be for succulents?

Whether a succulent is a soft or hard succulent determines what temperature it can withstand.

Anything warmer than 32 degrees F will be enjoyable for soft succulents. preferably over 40 degrees.

These plants cannot endure colder than freezing temperatures. Their hefty, thick leaves, which serve as water reservoirs, will freeze and destroy the plant.

Succulents that can withstand the cold can sustain -20 F. The best it can manage is a zone 4 to 5, and let me tell you, that is very impressive.

You must keep in mind that even if they can withstand temperatures below zero, they still like dry soil. That remains constant.

The majority of winters in the contiguous US will not only be dry but also wet and snowy.

Succulents can they withstand a freeze?

“Frost tender” succulents may experience variable degrees of damage, depending on how long the temperature is below freezing (32 degrees F). A sensitive plant’s cells expand, burst, and transform its leaves to mush when liquid inside them freezes. In a “light frost,” only the tips of the leaves may be harmed (“frost burn”). A “hard frost” is characterized by sustained temperatures below freezing, which can cause entire plants to die. Typically, succulents do not recover from roots.

Ones that are among the most fragile succulents include crassulas, aeoniums, euphorbias, and kalanchoes. Some succulents, in particular, have an inbuilt antifreeze that allows them to endure temperatures considerably below 32 degrees Fahrenheit—in fact, below zero.

Are your outdoor succulents at risk over the winter? Depending on where you reside, Please refer to “Cold Weather Care for Outdoor Succulents, By Region.”

Your area is frost-free (lucky you!) if…

This soft-leaved agave in my garden is the canary in the mineshaft when it comes to cold. Many succulents may survive a brief cold (less than an hour), but Agave attenuata’s leaf tips immediately reveal damage.

Although ugly, this damage rarely results in death. See how each leaf’s healthy green portion is? Cut each leaf to a point using scissors to remove the tissue-paper-like frozen tips. The harm won’t be very evident when you’re finished. Those shorter, clipped leaves will be buried by new growth during the summer. (Note: Such damage is comparable to scorching brought on by excessive sun and heat, which is common of desert conditions, and by wildfire, which, believe it or not, does occur.)

What about a succulent or agave that only suffers damage from frost on the tips of its leaves? Don’t even try trimming them. In a few months, it will shed those oldest leaves nevertheless.

areas with sporadic, light frosts (like Southern California’s interior):

If there is a “frost advisory” for your area, keep an eye on the weather forecast, and before it gets dark, go outdoors and cover your sensitive succulents. After midnight, frost is more common, and temperatures increase colder as dawn approaches. Warm air is lighter than cold air, which travels down hills and gathers in low areas. Succulents in swales are therefore more vulnerable than those on top of berms. You may have heard that Christmas lights slightly increase the temperature. Yes, if they are the traditional variety. LEDs in current use don’t produce heat. You should be concerned about succulents that are exposed to the elements and have nothing over them. I occasionally lean over a succulent and look up. It becomes draped if there aren’t any tree limbs or eaves directly above.

I reside at 1,500 feet in the foothills NE of San Diego (Zone 9b). And yes, after seeing the weather forecast on the late-night news, I have been outside at 11 p.m. in my pajamas and slippers, freezing while I place blankets on delicate plants while my husband holds a flashlight. I may leave the plants covered if several nights of frost are expected; otherwise, I take the sheets off the next morning. I fasten them with clothes pins and rocks to make sure they won’t blow off. AVOID using plastic. The plants are unable to breathe because of it.

In my yard, jades and other delicate succulents are covered in frost cloth. WATCH THE VIDEO

Why cold damages some succulents and not others

The origin of a certain plant type affects it greatly. Most succulents are native to dry, hot areas where they can store water in their leaves to survive drought. The ones that don’t freeze, however, are from dry, cold climates. See my essay, Showy Succulents for Snowy Climates, in the Wall Street Journal. The “hardies” include:

several species and cultivars of sempervivums (hens-and-chicks, above); some cactus, yuccas, and agaves (such as Agave utahensis, A. montana, and A. parryi); and lewisias from the Pacific Northwest.

Can succulents endure temperatures of 30 degrees?

Succulents can be difficult to cultivate outdoors in the winter in colder locations. There are still certain succulent plants that thrive in snowy conditions, despite the fact that they are generally known for preferring sunlight and not the other way around. Three of the most cold-hardy genera are Sempervivum, Hardy Sedum, and Hardy Opuntia, which can withstand subfreezing winter temperatures of -30F. Agave and rosularia are two other succulents with high cold tolerance.

Succulents should be brought inside when?

Again, a lot of this depends on where you reside and what you’re growing. You should generally bring your succulents inside before the first frost. In the US, this occurs during the end of September for many people.

Naturally, if you are raising cold-tolerant succulents, they can spend the entire winter outside.

Knowing your local growth zone is crucial. You should at the very least be aware of your region’s typical low temperature. For instance, we were in Zone 5 when I lived in Utah. The majority of my succulents at the time were Zone 9 plants.

All succulents with a Zone rating higher than 5 must spend the winter indoors since they cannot withstand the cold.

Since I currently reside in a Zone 9 region near Phoenix, most of my succulent plants perform well year-round outside. Only a few succulents classified as Zone 10 or 11 will require spending the winter indoors.

Therefore, begin by classifying your succulents. Afterward, ascertain which growth zone you are in. Look how how the two contrast! Plants that are rated higher than where you reside should be brought inside.

You can use this video to decide whether you should bring your succulents indoors for the winter.

In the winter, should you cover succulents?

If you have a variety of succulents that can survive the winter outside, you might wish to do so. Your plump outdoor greens still require adequate care, though, otherwise the frost risked damaging them.

Not to mention that your plant’s roots could decay due to the winter’s damp soil. Additionally, if your region gets too much rain during the cold season, the succulents’ cells will swell. Additionally, the plant cell walls may rupture as a result of the frost. As a result, it is crucial to take precautions to safeguard your plant from all of these harmful situations.

Although some varieties of succulents can withstand below-freezing conditions, none of the species prefers frequent watering or excessive humidity throughout the year. Succulents prefer healthy soil that drains well, good airflow, and bright sunlight. Here are some precautions you should take to ensure your in-ground plants are taken care of over the winter.

Build a Greenhouse

The majority of succulents cannot withstand temperatures below 25 F during the winter nights. Bring your succulents into a DIY greenhouse if your area has the same winter temperatures, or if you have a gazebo, cover it with 5mm plastic and move your succulents there. Make sure to securely anchor the plastic, and tape the seams. You can even include a little heater if the temperature falls any lower.

Cover Your Succulents

Cover your outside succulent plants with bed sheets if your region occasionally suffers frost. Row covers and nonwoven fabrics, which are often constructed of spun nylon, are further options. Your plants will be protected when it is 2-4 degrees below freezing if you cover them with such blankets.

Additionally, don’t remove the dried leaves from your plants because they protect them from high temperatures. Move your plants that are sensitive to cold under a tree, deck, or eaves; this will prevent heat from escaping.

Do succulents recover from freezing?

Can a frozen plant still be saved? This truly depends on the kind of plant and how long it was exposed to the cold. On all save the most tropical plants, light freezes are typically something that a plant can recover from.

Remove damaged plant material from woody plants in the spring. In the late winter, you can detect which stems are dead by scratching the bark. The tissue is still alive if the substance is green below. They will lose their leaves as a result of the freezing, but they normally re-leaf in the spring. After all threat of frost has passed, maintain the plants’ moisture and apply a mild fertilizer.

More delicate plants won’t be able to endure the freezing damage and will turn into annuals. Perennial plants that have been frozen-damaged may only have little root damage, in which case you can divide the plant and replant the pieces. The ones that recovered from the root area’s cold did not deal a fatal blow.

Prepare succulents for indoor living

Spray your succulents with a surface pesticide before bringing them inside. To ensure that your succulents are pest-free, this preparation should take place at least 3 weeks before their indoor adaption. By doing this, you can stop insects and other pests from spreading to your indoor plants.

After clearing the garbage, weeds, and leaves, look for any indications of an infestation. Change the soil if you notice flies gathering around the succulents. When you bring them inside your home, they will quickly spread to the neighboring plants if you don’t.

Make sure your succulent is in a pot with a drainage hole and well-draining soil. Because outdoor environments frequently have greater ventilation, a proper soil mixture is essential for indoor growing of succulents. Succulents need sufficient air circulation to sustain healthy roots. To improve drainage, you can also add pumice or perlite to the potting medium.

In addition to these actions, gradually cut back on the watering of your succulents. The plants will go into dormancy and be able to endure the harsh winter with the help of less water and a lower temperature.

Bring the succulents inside&nbsp

Stop watering your indoor succulents and allow the soil to dry up. Water them lightly during the winter, just enough to prevent dehydration. Ensure that the temperature is consistently between 50 and 60 degrees Fahrenheit.

Providing enough light for succulents in the winter is another factor to take into account for indoor adaption. If your succulents have been kept outdoors for a while, they may have grown accustomed to regular exposure to intense light. It’s better to replicate their growing environment indoors. A sunny windowsill can provide 6–8 hours of bright light in warm zones 9–11, but in places with little sunlight, you might want to consider obtaining a succulent growth lamp.

Fluorescent lighting will promote healthy, stress-free plant growth, especially for non-dormant succulents.

When may I return my succulents to the outdoors?

Before anything else, when is it too early to plant new succulents outside?

In general, waiting until after the last frost and when the nights don’t get below 40F is advised. Even while you could grow certain succulents outside before then, planting is most successful in warmer climates.

However, avoid waiting until the summer because the heat can be just as problematic as the cold. When planting your succulents outside, look for temperatures between 50 and 70 degrees Fahrenheit.