Succulents can withstand both heat and cold. A succulent can survive in temperatures as low as 40 degrees Fahrenheit, much like the desert, which can have chilly nights.
How cold must it be for the majority of succulents?
Because they are fickle plants, succulents shouldn’t be kept in temps so low. Succulents cannot survive in cold climates, so if you see the outside temperature lowering, take immediate action to save succulents from freezing.
It is unlikely that succulents will survive in temperatures below 40 degrees Fahrenheit. Succulents are susceptible to freezing and dying at temperatures between 30 and 40 degrees.
When it gets colder than forty degrees Fahrenheit, succulents should be brought inside. Learn how to take care of your succulent in cold weather, why 40 degrees is the point at which it can no longer survive, and what other temperatures are harmful to these plants by reading on.
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 
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.
The Effects of Temperature on Succulents and Cacti
Succulents and cacti prefer to reside in the “sweet spot” of temperature, just as is the case with sunlight exposure. These hardy plants can suffer irreparable harm from either extreme of the temperature range, so it’s important to monitor their health and adjust the environment as necessary.
Succulents and cacti thrive most effectively in temperatures between 40 and 80 °F. Outside of this range, little temperature swings are tolerated, but swings of five or more can result in permanent harm. Even more intriguing is the fact that temperatures that are on the edge of the bearable range (about 40°F or 80°F) can operate as “stressors,” positively affecting the plant and encouraging the expression of more vivid hues.
Succulents and cacti should ideally be kept above freezing during the winter to prevent frost damage. While more tropical types like euphorbia and lithops demand minimum temperatures of 50 to 60 degrees Fahrenheit, other cultivars are actually frost hardy and prefer cooler overnight temperatures of 30 to 40 degrees. Searching for “ideal temperature for insert plant name here” on Google is currently the quickest approach to find out what temps are optimal for your plants. Each plant product page will eventually feature our own documentation.
Extreme Cold and Extreme Hot
Succulents and cactus can, you guessed it, freeze when exposed to freezing or below-zero weather! The water that has frozen inside the plant’s cells expands as it thaws, killing the cells by rupturing them. When the plant finally thaws out, the damaged regions will start to decay or scar permanently—a symptom that could take a few days to manifest. To stop the rot from spreading, the best course of action in this circumstance is to remove the afflicted region with a clean razor blade.
It is preferable to relocate your collection under a patio cover or inside of your home while the freezing conditions last in order to prevent damage from frost and freezing temperatures temporarily. A “frost blanket,” which is just a thin piece of fabric designed to protect plants from cold, can also be used to cover your plants. Plants should be taken indoors for the winter or placed in a sunroom or greenhouse with plenty of natural light in regions of the country where cold temperatures last for months at a time (essentially everywhere else save California).
However, heated temperatures can also do harm if they are not controlled, so they are not the only bad guys in this tale. A variety of things can happen to your plants when it becomes too hot (90 degrees Fahrenheit and above), especially when combined with full sun exposure. For example, leaves may shrivel and/or burn, water inside plant cells may steam and explode, and root systems may become fried.
Because soil is not a very good conductor of heat or cold, succulents planted in the ground with developed root systems can withstand high heat and cold more better than those planted in containers. On the other hand, containers easily conduct heat and cold, focusing such extremes on the roots of the plants.
There are always exceptions to the norm, just like there are in everything else in life. Succulents can withstand temperatures well below freezing and temps as high as 100 degrees. Drive about and observe what sorts of succulents your neighbors are successfully cultivating to find out what varieties work best in your specific climate.
Moisture and Extreme Temperatures = Bad News
Extreme heat and dampness are among the most troublesome environmental conditions. You should never put your plants in a situation where they are both hot and damp or cold and wet. Whether in the ground or in containers, plants that are grown in dry soil perform far better than those that are not. The water in the soil might start to steam in exceptionally hot weather, thus “cooking” your plants. Water can obviously freeze in freezing or subfreezing temperatures, harming the root system and producing rot. If you absolutely must water your plants when extremely high temperatures are predicted, try to do so as early as possible, ideally before 7 a.m.
The TLDR (too long, didn’t read) Summary
Average temperatures are much preferable to harsh ones for succulents. Frost damage can occur in cold conditions, whereas scorching and atrophy can occur in hot temperatures. Paying attention to what your plants are saying is the simplest method to make sure they are content. Bring them indoors or wrap them in a frost blanket if they are suffering from frost damage. Move them to a sheltered spot or cover them with shade cloth if they are scorching or wilting.
How can I determine whether my succulent is too cold?
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.
Do succulents survive the cold outside?
There are many succulents that can endure the winter outside, even in extremely cold locations. These
Succulents that are hardy thrive in chilly, snowy winters. Sempervivum heuffelii, which maintains vivid colors for Winter Interest, is one of our favorites. The frost-hardy Sedum cultivars are especially recommended since they create excellent ground covers in practically all regions.
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.
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.
Are succulents too cool for 50 degrees?
You might be curious about the lowest temperature at which succulents cannot survive when taking care of them. Warm, arid regions are where these plants are native. Nevertheless, while some succulents can endure colder temperatures, others cannot. What degree of cold is therefore too much for your succulent?
Any temperature below 50 degrees Fahrenheit is too chilly for succulents, which typically require temps between 50 and 80 degrees Fahrenheit. Depending on the species, a succulent’s lowest temperature tolerance varies.
My indoor succulents may I transplant them outside?
Succulents are drought-tolerant plants because they can retain water in their large, irregularly shaped leaves. Succulents have a broad variety of eye-catching shapes and textures, which provide any landscape aesthetic interest. Can succulents live outside? is an often asked question. The quick response is “yes”! Growing succulents outdoors is an excellent alternative because they do well there and can withstand some neglect. They also do well in sunny areas with warm, dry weather.
Succulents can be grown in the ground, in pots, or hidden in unexpected planting locations. Take the uncertainty out of caring for these wonderful conversation pieces with stunning foliage by reading our suggestions for growing succulents outside.
Can succulents bounce back after a cold shock?
Cold fronts occasionally pass through, dropping temperatures toward freezing, even in regions with moderate winters. Most African succulent plants are vulnerable to cold. For instance, the University of Florida IFAS Extension notes that aloe vera (Aloe barbadensis) grows in USDA zones 9 through 11 while jade plant (Crassula argentea) grows in the frost-free regions of USDA zones 10 and 11. First to be harmed are delicate new growth or the thinnest plant portions, which typically seem fragile and discolored.
Even if your succulents freeze, all is not lost. If you suspect your succulent has frozen, Gardening Know How advises waiting a few weeks before evaluating and treating frost damage. The frozen plant should be recoverable if there is any fresh growth. Use a sharp knife dipped in rubbing alcohol to chop away the damaged areas of the plant, eliminating any tissue that appears squishy or has brown in it. This will help the plant to recover. Between cuts, clean the knife. Place container plants out of the direct light in a dry location. Resuming routine plant care after the wounds have healed
Can succulents endure a chilly environment?
Sometimes, a succulent plant that you purchase or receive as a gift may not have an accurate label.
When you can judge a succulent’s ability to withstand cold weather just by looking at it, that is helpful.
Leaf Shape
Water expands as it freezes. Therefore, when the water freezes, succulents with thick, fleshy leaves or stems will suffer harm.
The plant’s cells could break and perish even in a brief period of at or below freezing temperatures.
Water Amount in Leaves
Low-water succulents will have leaves that are floppy and wrinkled. Even in subfreezing conditions, the water will still expand.
The cells in the leaves and stems may survive because there is a little more space. The overall damage to the plant may still take some time to heal.