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what is the coldest temperature a christmas cactus can withstand

by Beulah Lesch Published 2 years ago Updated 2 years ago
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As fall approaches and temperatures begin to drop, take your cactus indoors. They may tolerate short periods of temperatures below 50 degrees, but they cannot tolerate freezing temperatures.

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At what temperature should I bring my Christmas cactus inside?

Temperature: To set flower buds, Christmas Cactus needs cool 60-65 F days and 45-55 F nights. Keep your plants in a spot away from cold drafts, heating ducts and fireplaces. Fertilizer: Christmas Cactus that are growing and blooming benefit from all purpose fertilizer applications.

How cold is too cold for Christmas cactus outside?

Christmas cacti prefer a more humid environment, which makes a bright bathroom or kitchen a good spot to keep them. In the summer, Christmas cacti can be placed in a shady spot in the garden or in an unheated porch until temperatures get below 50°F (10°C). Keep them out of direct outdoor sunlight.

Can I leave my Christmas cactus outside?

Christmas cactus can be moved outdoors in summer but should be kept in a partial to full shaded area. Direct sunlight can burn the leaves. Some growers move plants to the shade of a porch or patio for the summer. During summer, water to keep the growing mix moist after it dries on top.

What is the coldest temperature a cactus can withstand?

20 degrees below 0 degrees FahrenheitTemperature. Certain cacti can handle temperatures as low as 20 degrees below 0 degrees Fahrenheit, as some varieties hail from cold desert regions. These plants might have spines or hairs that keep out frost, or they may expel water (which will make them look slightly deflated) to avoid stem freeze.

When should you put a Christmas cactus in the dark?

In late September or early October, place the mature plant in a dark room or keep it covered (under a box or bag works fine) for at least 12 hours a day.

Where is the best place to keep a Christmas cactus?

Holiday cacti grow best when they are placed in a location with partial shade, such as an east or west facing window, with a temperature between 70° and 80℉.

Can you use Miracle Grow on Christmas cactus?

Miracle-Gro Indoor Plant Food 0.5-1-1 Since cacti are a type of succulent, it's safe to say that most formulas designed for these plants will work well on your Christmas cactus. One of the most popular succulent fertilizers available is this liquid plant food from Miracle-Gro.

Does cold hurt Christmas cactus?

They can't tolerate frost but they need cold temperatures to force blooms. As a tropical plant, Christmas cacti like warm, balmy temperatures; moderate to low moisture levels; and bright sun. It likes to be warm, but you should keep the plant away from extremes such as drafts, heaters, and fireplaces.

How often should you water a Christmas cactus?

If you are growing the cactus indoors or in a cooler environment, you should water every week. If growing outdoors or in a humid and hot environment then water every two to three days. You should also water less in the fall and winter.

Is 40 degrees too cold for cactus?

In winter, it's best to keep succulents and cacti above freezing to avoid frost damage. Some varieties are actually frost tolerant and prefer cooler nighttime temperatures of 30-40°F, while more tropical varieties such as euphorbia and lithops prefer minimum temperatures of 50-60°F.

Should I bring my cactus inside during winter?

Succulents and cacti make for good houseplants year-round. In winter, plants only need a little light and occasional watering to keep them going. Most cacti and succulents go dormant by the time fall comes around, meaning they will stop growing when temperatures and daylight drop.

Can cactus survive 30 degrees?

Preferably 40 degrees and up. Temperatures under freezing are simply too cold for these plants to survive. Their plump and fleshy leaves where they store water will freeze and rot the plant. Frost hardy succulents will tolerate -20 degrees F.

Is 40 degrees too cold for Christmas cactus?

They may tolerate short periods of temperatures below 50 degrees, but they cannot tolerate freezing temperatures. All of the cacti are short-day plants. They require 14 hours of uninterrupted darkness daily to produce blossoms.

How do you take care of a Christmas cactus in the winter?

They like humidity, so if your house is dry indoors in winter, put it on a tray of pebbles, or place it near other plants. Water when the top surface feels dry, and never let them sit in water. Christmas cacti prefer daytime temperatures of 65 to 70 degrees, and evening temperatures of 55 to 65 degrees.

At what temperature can cactus go outside?

In general, succulents and cacti do best in temperatures ranging from 40-80°F. While minor sways in temperature outside of this range are tolerable, sways of 5° or more can cause irreversible damage.

What happens if a cactus gets too cold?

The first sign of freeze damage to cactus plants is softened tissue. This tissue often turns white initially. However, in time, the damaged areas of the plant turn black and decay. Finally, the freeze damaged parts of the succulent will fall off.

Christmas Cactus Cold Hardiness

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How Cold Can Christmas Cactus get?

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Treating Christmas Cactus Exposed to Cold

If the cactus is out too long in freezing temperatures, the water stored in its tissues will freeze and expand. This damages the cells inside the p...

What is the color of the Christmas cactus?

The exotic pink, purple, red, yellow or white flowers of the Christmas cactus ( Schlumbergera bridgesii) are a bright addition to the holiday décor. The holiday cactus is one of three – the Christmas, Thanksgiving ( Schlumbergera truncates) and Easter ( Rhipsalidopsis gaertnerrii) cacti.

What is the difference between a Christmas cactus and a Thanksgiving cactus?

The Christmas cactus' "leaves" have smooth, scalloped outer edges, while the Thanksgiving cactus , also known as the crab's claw or lobster cactus, has hook- or claw-like points along the leaf margins . The Easter cactus also has smooth, lightly scalloped edges and sports hair-like bristles between and at the end of each leaf segment.

How to get cacti to bloom?

If you're unable to maintain solid darkness for 14 hours daily, the cacti will also produce blossoms when kept at 55 to 60 degrees Fahrenheit at night and 60 to 70 degrees during the day. Keep the plant out of direct sunlight and away from heater vents; sun, heat and overwatering can cause the buds to dry up and drop off.

How long does it take for a cactus to bloom?

All of the cacti are short-day plants. They require 14 hours of uninterrupted darkness daily to produce blossoms.

What are the pests that can be found in cactus?

Aphids, mealybugs and spider mites may infest the cactus. A strong stream of water will knock off many pests without resorting to insecticides. Gently wipe the leaf segments with a damp paper towel or cloth to remove pests and dust.

Do Christmas cactus bloom in the summer?

If you take your plant outside for the summer, the Christmas cactus care for outdoors is relatively simple.

Can cactus survive freezing temperatures?

They may tolerate short periods of temperatures below 50 degrees, but they cannot tolerate freezing temperatures.

How hot does a Christmas cactus need to be to bloom?

A Christmas cactus needs temperatures of about 60 to 65 degrees to produce its gorgeous pink/purple blooms. It can survive, although not thrive, if the temperature dips into the 50s, but not for prolonged periods. A frost will kill it, so if your cactus has spent its summer on the patio, bring it indoors in the Fall.

What is the best room for a Christmas cactus?

A bright and sunny room is ideal for a Christmas cactus, provided it’s not in a too-bright spot like a south-facing windowsill. It’s a tropical plant, not a desert cactus, so it doesn’t like to get too hot or dry.

How Often Do You Water A Christmas Cactus?

As tropical plants, Schlumbergera don’t like to get too dry, and shouldn’t be treated like typical cacti. Water them when the soil feels dry to your fingers. Let any excess water drain onto the saucer beneath the plant pot, then empty it: the Christmas cactus does not like having “wet feet”.

How Do I Keep My Christmas Cactus Blooming?

So, after you’ve encouraged your Christmas cactus to bloom, by using the 50/50 light/dark method, how do you keep those beautiful flowers coming?

Are Christmas Cactus Poisonous To Cats & Dogs?

The good news is that Christmas cactus isn’t poisonous to your cat or dog. This makes it a great alternative to that other holiday favorite, the poinsettia, which is.

Why are my Christmas cactus leaves turning brown?

Problems caused by overwatering include stem rot and root rot, and too much humidity causes a type of gray mold called Botrytis Blight.

How to keep a Schlumbergera plant in the sun?

Keep it in indirect sunlight, such as in an east-facing window, and water it when the soil feels dry. Mist it occasionally to keep it humid. Ideally, the room stays at around 60 degrees or at least, has no massive fluctuations. You can also treat your Schlumbergera to some potassium-rich fertilizer once a fortnight (when it’s not in bloom).

How many hours of light does a Christmas cactus need?

To initiate the production of flower buds, there needs to be at least eight days of 16 hours of dark and eight hours of light each day.

Why are my Christmas cactus leaves turning red?

Full sun can cause the leaf segments to turn dark red as the plants begin to burn. The “trick” to getting Christmas cactus to bloom in the following years after purchase comes down to two things: light and temperature. These two are the keys to the flower kingdom.

What is the name of the cactus that you leave to your heirs?

Why, you might even be leaving a giant, magnificent Christmas cactus to your heirs. Christmas cactus. Photo credit: Bodie Pennisi, Univ. of Georgia, Bugwood.org. Christmas cactus ( Schlumbergera truncata) is also known as Thanksgiving cactus, holiday cactus or crab cactus.

Why are cactus classified as epiphytes?

They are classified as epiphytes because they live above the ground in the trees, in areas where branches meet and decomposing fallen leaves and mosses collect. Even though this plant bears the name of cactus, the care that it requires has nothing to do with its desert relatives. It is classified as a forest cactus.

Can you put a Christmas cactus on a window sill?

Avoid placing the plant where it receives either cold or hot air drafts. Placing the Christmas cactus on the window sill in a cool room and not turning on the lights is all that’s needed. If the plant was in a lighted room, often the side to the window develops buds, but the lighted side of the plant does not .

Is a Christmas cactus a forest cactus?

It is classified as a forest cactus. Its needs trace directly to its origins. Christmas cactus grows best when it is “pot bound.”. That means leaving it in a small container for as long as possible and then moving up to just a slightly larger pot.

Do Christmas cacti bloom again?

The good news is that Christmas cacti are considered relatively easy to get to bloom again if their temperature and light requirements are met. This article was published by Michigan State University Extension. For more information, visit https://extension.msu.edu.

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