Moving your cactuses to a cool location is the second stage in winterizing them (allowing them to become dormant). When temperatures begin to drop around the middle of October, you should consider relocating your cactus to a cooler location.
The ideal range for cactus dormancy temperatures is between 47 and 54 °F (8-12 Celsius). If your cactus has spent the entire year indoors and you have heating, you should transfer it to a balcony, garage, or even outside. In the winter, you must avoid keeping your cactus in a warm or hot room.
You may prevent your cactus from falling dormant in the winter by not transplanting them to a cool place. It will go on expanding (but growth will be uneven and minimal).
In addition, the increased temperatures will cause the water to evaporate, which will cause the air to dry (as you will water it less). Additionally, it should be a dry area. Your cactus will thereafter develop thin, elongated growth.
Lower temperatures will slow down your cactus’s metabolic processes and reduce water evaporation. Growing throughout the winter will impede the development of flower buds, result in nutritional depletion, and lead the cactus to dry out.
Step 3: Keep your cactus in cool conditions for winter
Keep your cactus in the cool spot you’ve chosen until the end of February. Your cactus will be dormant and its growth will have stopped. Keep them where they may receive the most winter sun possible.
You should gradually acclimate your cacti to sunshine circumstances once the temperature starts to rise once more. But you have to do this gradually.
Your cactus are prone to burn in sudden sun because they won’t get bright, sunny conditions all winter. Cacti adjust to low light levels, therefore it’s crucial to reintroduce them gradually. Additionally, avoid fertilizing your cactus during the winter.
Your cactus won’t actually show any signs of dormancy. But stagnation results in dormancy.
Step 4: Slowly introduce to sunny conditions
You must gradually acclimate your cacti to sunlight after the winter dormancy phase, around March, to avoid sunburns. Put them on a windowsill or another permanent/usual location to do this.
Then, protect your cactus from direct sunlight by using a thin white cloth or gauze. You can expose your cacti to more and more sunlight as the weather warms up over the course of a few weeks to a month.
Your cactus will burn if you don’t protect it from direct sunlight after a winter of little to no sunlight. A cactus’ epidermal tissues will be affected, which could result in death or interruption of vital metabolic processes. Additionally, be sure to give adequate ventilation because cacti detest stagnant air.
If you have recently re-potted your cacti into new containers, please minimize sun exposure and watering for a week. Additionally, don’t increase watering too quickly—increasing it gradually as the temperature rises. Your cacti’s successful dormancy will be ensured by gradual modifications in the surroundings.
How cold must it be for cacti?
If you have enough light, cacti are some of the most rewarding houseplants. Few blooms can match them in terms of color, size, or beauty. Space is typically not an issue because most cacti grow slowly. They are extremely resilient and flexible. They do not “thrive on neglect,” unlike what the general public thinks. They “thrive on gentle loving care, like most plants, but they will at least “survive on neglect.”
Except for epiphytic (tree-dwelling) cacti and succulents like the Christmas cactus, rhipsalis, and orchid cacti, which demand less sunlight, greater humidity, and more watering than other species, the general care instructions below apply for cacti and most other succulent plants. They also prefer fertilizer with a higher nitrogen content. Compared to other species, add less sand to your potting mixture. Other succulents such as haworthias likewise favor brilliant indirect light over direct sunlight.
Light
Give cacti and other succulent plants the brightest or most sunny windows you have indoors (four to six hours of direct sun). They will grow abnormally long and thin in low light conditions. Your plants will benefit greatly from spending the summer outdoors in the morning or late afternoon sun, when there is greater air movement and light. The majority of succulents can withstand intense outdoor sun, but they must get used to it. When putting plants outside, place them in partial shade or shadow at first and gradually expose them over the course of a few weeks to the strong late spring and summer sun.
Spiny and woolly species need the greatest sunlight, whilst spineless species typically need shade during the midday hours. If your plant has a reddish tint, it may be because the amount of sun it can withstand is reached or exceeded.
Watering
When you water, make sure to water well and wait until the soil has dried before doing so again. In particular, succulents are vulnerable to rot from excessive watering. If the earth around your plant is already moist, NEVER water it. Pots that are dry weigh less than wet ones. When the soil inside clay pots is moist, they feel chilly and damp to the touch. When the soil has enough moisture for the plant, succulent leaves are solid and plump.
The majority of cacti and several other succulents prefer to maintain a significant amount of dryness during the cooler months of the year (usually October through April). Over this time, drink less water than usual. To encourage new growth in the spring, spray your plants in the early morning hours of warm days. The spines of plants will allow them to absorb moisture. In order to prevent new roots from being stifled by excessively damp soil during the early spring, we also advise watering plants from the bottom of the pot. Fill the plant’s saucer with water, give the soil, pot, and plant around 30 minutes to absorb the moisture, and then drain the extra.
If you embed your plants in a mixture of 50% coarse builder’s sand and 50% peat, they will grow to their fullest capacity if they are in clay pots. This stops the soil from drying out too quickly and enables the roots to grow in the consistent wetness that the peat/sand mixture creates. Make sure there is excellent drainage in the tray that contains the peat/sand mixture.
Temperature
Keep succulents and cacti above freezing in the winter. Some plants require a temperature range of 35 to 40 °F at night (some cacti and other succulents can endure temperatures well below freezing if kept absolutely dry.) A minimum temperature of 50–60 degrees is preferred for more tropical succulents like adeniums, euphorbias, lithops, and stapeliads.
Plants need to be shielded from intense heat in the summer since potted plants’ root systems are more susceptible to harm. Good air circulation and cautious watering will prevent fungal and rot issues in humid and hot conditions.
Fertilizer
From May to September, feed your plants once per month using a fertilizer that contains low nitrogen (10% or less), such as 5-10-5 or 10-30-20. Nitrogen overload promotes excessively quick green but weak development. As the majority of cacti have evolved to thrive in nutrient-deficient soils, always dilute the fertilizer more than the label recommendations suggest.
Repotting
In the spring or early summer, repotte. When young, most plants like annual repotting with just one pot size increase. Without relocating the plant to a larger pot, you can carefully remove the top inch or two of soil after you reach roughly a 6-pot size and replace it with fresh mix. Since succulents are typically heavy plants, especially when potted in clay, moving them into ever bigger containers can be challenging.
Steer clear of soils that contain a lot of peat moss. Peat retains moisture for too long and is difficult to remoisten after being fully dried (a frequent occurrence with most succulents). You can add some coarse builder’s sand to the soil to promote drainage and a tiny amount of peat to the soil to improve texture. As much as 40% sand is appreciated by stapeliads, wooly cactus, and lithops (living stones). The base of the plant should have a top dressing of fine gravel since it encourages greater water absorption into the soil, shields it from excess moisture, and looks good too. For every 3 inches of pot size, add a tablespoon of gypsum and bone meal, if possible.
Use a pair of wooden tongs or a piece of newspaper that has been rolled up to help plants with a lot of spin out of their pots. If the plant is resistant, resist the urge to pull it out because doing so will harm the roots. Try again by striking a hard surface with the pot. As much soil as you can take out without harming the root ball. To prevent rot, always repot the plant at or higher than the prior soil level. You might need to stake species of columns. To give new root hairs time to grow after repotting, wait a week or two before watering.
How soon should I bring my cactus indoors?
Even while certain sturdy cacti may survive the winter in the garden, when the outside temperature falls below 50 degrees Fahrenheit, bring frost-sensitive species inside. For pests, gently inspect the cactus. Scale and mealybugs can be removed rapidly using an alcohol-soaked cotton swab. Additionally, aphids and spider mites may travel inside. These little pests can be quickly eliminated with a water blast.
Move a lot of plants inside. Depending on the species, place the cacti far from heat vents and in full sun or brilliant filtered light. Place the prickly cacti in areas where you, your kids, and your pets won’t likely bump into them and end up with a collection of spines and puncture wounds. Contrary to popular belief, cacti don’t actually reach out and grab you, but even simply brushing up against their spines can be uncomfortable.
Due to the fact that some species of cactus are native to freezing desert environments, they can withstand temperatures as low as 20 degrees below 0 degrees Fahrenheit. These plants may exude water, which will give them a slightly deflated appearance, or they may contain spines or hairs that deter frost. However, many cacti cannot withstand cold or temperatures below zero. Always examine the hardiness zone of a cactus before purchasing. Bring your cactus inside as a houseplant if you reside in a location outside of its range. Row covers, tents, and frost cloths can all be used to protect your cactus from the bitter cold outside.
Humidity
To review, humidity is the quantity of water vapor in the atmosphere. Cacti typically like low humidity and good airflow, though they do appreciate water after drying up. Winters are frequently dry, so keeping your cactus next to a heater inside won’t cause any issues. The air outside is frequently dry due to wind chill. Keep an eye on the humidity if you live somewhere where it gets cold and humid. If the relative humidity exceeds those ranges, you might wish to bring your cactus indoors because most cacti like a relative humidity of 40 to 60 percent.
How cold is 40 degrees for cacti?
Winter is on its way. For many of us, that entails covering up with coats and sweaters in order to stay warm.
Cacti can survive in frigid climates, thus the answer is yes. But not all cactus species can withstand extreme cold.
Cactus plants can typically withstand temperatures as low as 25 degrees Fahrenheit.
However, some organisms that can withstand cold can survive in temperatures as low as 20 degrees below zero Fahrenheit.
Since most cacti are found in desert areas, they are used to hot, dry weather.
Some cactus, though, can withstand the cold. By picking the appropriate variety of cactus for your region, you can grow cacti even if you reside in a region with a chilly environment.
This article will examine whether cactus can survive in cold climates and offer some advice on how to keep them healthy in the chilly winter months.
Can cacti be left outside in the winter?
The resilient cactus are easily able to live in locations with a lot of snow cover. Cacti can get burnt or frostbitten in locations with strong winds, sun, and little snow. As late in the growing season as feasible, carefully wrap the plants in burlap to prevent damage.
How should a winterized indoor cactus be cared for?
With their striking shapes of all kinds and stunning color variations, cacti are among the world’s most distinctive and lovely plants. They go well with a variety of home decor themes, including minimalist, boho, and, of course, anything with a southwestern influence! Who hasn’t had the need to collect each and every one of the miniature cactus plants on display and take them home? Plants require proper care once they have been adopted because they are more than just static decoration. Cactus plant care isn’t tough, but it is a little special, just like the plants themselves! Below are our top five suggestions.
Location Observation
You may probably imagine what type of environment cactus prefer since they typically grow in desert climates! Sunlight in plenty. But take care! Even cactus can burn, particularly if they are in full sunshine and positioned behind a glass window, which intensifies the effects of the sun. The best window is one that faces south. You may need to move your cactus to a cooler location if you see that the side facing the sun is beginning to turn yellow or brown.
Keep your cactus in a bright area of the house, such as one with artificial lighting. You can put your cactus outside on the patio throughout the summer to take advantage of the intense summer sun.
Hydration Fixation
For many plant owners, watering cacti plants has been a worrying thought. We are aware that they require water because they are plants, but we have also been warned about providing them with excessive amounts of water because they originate from the desert. Cacti actually require regular waterings; they only have a particular defense against drought.
The need of water cannot be overstated if you want your cactus to grow. You can feed them water once a week if they are in a sunny area with good daytime heat. The sole need is that the soil be completely dry between waterings. This will prevent the plant’s bottom margins and roots from rotting or becoming wet.
You can use less water in the winter because there is less sun and it gets colder at night during this season, which causes cactus to go dormant.
Flirt with the Dirt
A variety of cacti species are grown together in a container garden to create an oasis of lovely plants, and these gardens are highly popular. This frequently necessitates repotting the cacti! Consider the type of soil you’re using in the new container in addition to constantly wearing thick gloves (or using salad tongs to pick up and handle the cactus). Cacti prefer their own distinctive flavor of dirt, thus it must be highly efficient at draining surplus water. Many nurseries and flower stores sell bags of cactus soil, which is sandier and rockier than standard potting soil. This is necessary to ensure that the water drains and doesn’t keep the cactus damp.
Plotted and Potted
Take a close look at the container you are selecting before you repot the cactus. The best option is undoubtedly a container with drainage holes, as you won’t have to worry about the bottom collecting water. Cacti can, however, also be grown in containers without drainage holes; it just requires a little more attention. Always check the soil before watering to make sure it is completely dry. To avoid unintentionally drowning your cacti, another alternative is to meter the water you use. Depending on the season, a 1/4 to 1/2 cup per week or two is sufficient to ensure the health of your cactus.
In the Mood for Food
Fertilizer can be quite beneficial for cacti, and there are specific types with the nutrients they require. (An additional excellent alternative for a well-balanced supper is a 10-10-10 fertilizer.) Since they love to be fed in little quantities frequently, you can fertilize them sparingly with each watering during the summer growing season. In the winter, decrease your efforts to give the plants time to recuperate.
BONUS TIPDress up Your Cacti
Cacti are lovely guys on their own, but it’s always fun to give them a little makeover! From a lovely pot with extra personality to organic accents. Traditional containers for these desert-dwelling plants are made of terra cotta or clay, although a glass terrarium-style planter or ceramic dish can also be used. We enjoy placing stones and pebbles of various sizes and colors on top of the ground. We also include wood, sand, and big rocks. Make sure you can still use a finger or a moisture meter to determine if the soil is dry or not.
Browse through our collection of cactus! We enjoy potting up lovely planters filled with varied succulent and cactus species and celebrating the uniqueness of each individual plant.
Don’t be reluctant to adopt some of these beautiful plants now that you are an authority on cactus maintenance! Have fun picking out your favorites and bringing new companions home to make your own lovely and joyful cactus gardens.