Do cactus plants survive freezing temperatures?

Answer 1

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Cactus Cultivation


Note: The tips and notes below represent a body of knowledge that we have gathered from raising cactus plants in the USA. Most notes are generalizations. Additional research into specific plant cultivation requirements is encouraged.

I. Raised Cactus Bed Preparation
In preparation of our outdoor cactus beds, the following steps were used:

A south-facing area was chosen for the bed. This area receives unobstructed sunshine for a good portion of the day.
The grass covering the area was removed with a shovel. The sod is used to fill in bare spots in the lawn.
A shovel or tiller is used to turn the soil over upon itself.
Builder's sand is added to the soil; estimate 1 part sand to 1 part soil erroring on the sandy side.
Sand and soil is mixed together with shovel or tiller.
To enhance drainage, soil mixture is shaped so that the bed is high in the center and tapers toward the ends.
A small ditch is shoveled out at the bed's lowest point to divert water away from the bed.
Cacti are planted and watered.

II. General Cactus Soil Mixture
Most cacti require a free-draining soil mixture to prevent diseases resulting from too much water. A one part potting soil to one part builder's sand mixture is acceptable for most types. Some cacti, the epiphytes, are native to jungle areas and receive their nutrients from trees. These epiphytes, including the popular Christmas Cactus and Easter Cactus, do best with peat moss added to the soil mixture. A one part potting soil, one part builder's sand, and one part peat moss mixture is the recipe that we use for epiphytic cacti. If you use peat moss be sure to wet it throughly before adding it into the soil mixture.

III. Watering Requirements
During the growing season, cacti need to be watered when the soil approaches dryness. It has been my experience that this results in weekly watering. The main thing that we try to accomplish when watering is to completely saturate the soil. For potted plants, this means that the pots are sometimes submerged in a basin full of water. A plant is considered to be completely watered when all air bubbles stop arising from the soil. In winter, a natural dormancy period for most cacti, watering is reduced. We usually water our plants once per month during the winter using the method described earlier.

IV. Fertilizer Requirements
Cacti will benefit from a light fertilizer application during the growing season. We use a partially diluted houseplant fertilizer on our plants. Some recommend the application of 1/2 strength tomato food. No fertilizer should be given to the plants during the winter dormancy period.

V. Lighting Requirements
Generally, cacti should be grown in full sun for blooms and good growth. The only exceptions are the epiphytic species that are native to the shaded rain forests. Some plants can be sunburned from too much light especially when moving from an indoor location to an outdoor location. This usually discolors the plant. South exposure is best for greatest intensity of sunlight in the USA.

VI. Temperature Requirements
Temperature can kill or disfigure cactus plants. Heat generally is not the problem; our plants endure afternoon temperatures in the 90s and low 100s during the growing season. Plant tolerance to cold, however, varies from species to species. Most cacti that we have owned tolerate temperatures to freezing (32F). A few conk out below 50F and some endure cold USA winters with lows reaching 10F. Cold and excess water in the winter is a lethal combination. We've lost plenty of plants due to this reason. The majority of our plants are wintered in the greenhouse where minimum temperatures reach 40F.

VII. Weeds
Each area of the world has its own indigenous weed species. The weeds that we battle the most are spurge, nut grass, and Bermuda grass. You have to be careful removing weeds close to cacti - I have many battle scars from not wearing gloves. A good action hoe and a three prong cultivator come in handy during weeding time.

VIII. Insects
Cacti are not immune from insect attack. We haven't really noticed any problems with insects, however. Ants seem to be our most frequent visitors. See our section on Cactus Pests for a brief treatment of common insect problems.

IX. Re-potting
The majority of our cacti are potted in regular, unglazed clay pots. Clay pots are porous and add to the free drainage characteristic of cactus soil. Plastic pots can be also be used, however, extra care is required to insure that the soil does not become waterlogged. Plastic pots hold water longer than clay pots. We don't repot very often since most cacti don't mind to be crowded too much. A root or roots growing out of one of the pot drainage holes is a clue that the plant needs repotting. Gloves, folded newspaper layers, and tongs are used to support the cacti when removing it from the old pot and when placing it into the new pot. Some plants refuse to give up their old homes, so, it is sometimes necessary to break the pot. New pots are generally 2 inches larger in size compared to the old pot (i.e. a plant that is growing in a 4 inch pot is repotted into a 6 inch pot).

X. Propagation
Stem cuttings: a portion of the cactus stem is cut off and placed in a warm, dry place for a few days for the wound to callous over. Time is not critical - I've waited as long as 3 weeks for cuts to callous. After callous develops, plant in soil mixture and water as usual.
Seeds: Growing cacti from seed is very enjoyable and is a great way to increase the number of plants in your collection. Cactus seed originate from fruits that sooner or later dry out and expose their seed. Some cactus fruits dry out naturally on the plant, however, some fruits remain juicy for quite some time. Harvesting seed from these juicy fruits is much like getting grape seed from grapes. Paper towels are used to dry these seed prior to storage. Once dried, cactus seed can be stored in tiny envelopes for convenience until planting time. It is best to store them in a cool and dry area of the house. The seed remain fresh for several years.


Once the seeds are ready to plant, prepare or purchase your soil germination mixture. Any porous, free draining soil mix will do; purchased germination mixes have the advantage of being sterilized and free from weeds/fungi. Place the soil mix in small pots or, preferably, a plastic compartmentalized seed flat. Soak the mix with water and let the water soak in. Since most cactus seed are very small, sprinkle them directly on top of the soil. Some larger seed may need to be placed gently underneath the soil surface. Once the seed have been sowed, cover the mix with a very, very small layer of fine sand. The sand will help to support the tiny plants when they germinate. Place a transparent covering (i.e. glass, plastic) on top of the seed container to help retain moisture. For small pots, placing the pots inside a Ziploc-style bag is ideal. Exact-fitting, plastic domes usually are included in the purchase of seed flats. Place the seed in a warm location (i.e. 70F - 80F) that receives indirect sunlight. Germination time varies from 3 days to months. It is important to keep the seed mix from drying out. When seedlings appear and have taken on a green appearance remove the transparent covering. Young cactus plants appreciate fresh air. Following germination, keep a close eye on watering and light requirements. Seedlings require more water than adult plants and the mixture should not dry out. When watering, a fine mist should be used so as to not uproot the seedlings that are trying to get their roots established. Strong light can sunburn seedlings very quickly, so, make sure that seedlings receive indirect light for the first few months after germination.

Cactus seedlings grow slowly, so, don't be surprised that the tiny plants remain in the seed mixture for a long period of time (i.e. 6 mos - 2 yrs). Crowding of seedlings is not much of a problem and may be beneficial. Transplant seedlings once their root systems have been established. It should be noted that the seedling roots are fragile. Take care not transplant the seedling too early.

Answer 2

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Answer 3

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RE:
Do cactus plants survive freezing temperatures?

Answer 4

Cold Weather Cactus

Answer 5

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Firstly, no plants can grow in true deserts, since there isn't enough rainfall in them to support any plant life whatsoever. Desert Cacti and most other 'desert' plants grow in what is actually just very arid land, which does receive some regular rainfall, though infrequent it may well be. In my opinion, most desert cacti would be fine if global temperatures were to increase by a few degrees, although it could increase the scarcity of water and daytime temperatures, which wouldn't benefit the health of them. Since all but one species of cactus inhabit the Americas, and since the Americas receive quite a lot of rainfall, I don't think it would effect the health of most cacti and they would be content living where they already live. It might, however, effect the flowering cycles of some of the species of cactus that inhabit the Northern reaches of north america. Some species of cactus need to be frozen solid and buried under a blanket of snow for a few weeks each year in order to be able to flower and as a result, these species would probably die out if global temperatures increased significantly. Succulent desert plants that live in the arid areas of Africa and Australia, where drought often occur already, would probably be worst effected, since the global warming would increase the severity and length of these droughts. Also, it sounds to me like you're overestimating the effects of global warming and also not taking everything into consideration. Global warming means that Earth, as a whole single entity, is getting warmer. It is only likely to increase in temperature by a few degrees over a long period of time, so these kinds of changes as relatively insignificant and aren't large enough to wipe out all plant life, as you seem to imply. The plants which will be worst hit by global warming are probably going to be forests within the arctic circle, since these grow in permafrost, as the permafrost melts they will no longer be anchored into the ground and do not stand upright and are unable to grow as well as before. Overall, most things will adapt and change to cope with increasing temperatures, but only time will tell.

Answer 6

There are some types of cactus plants that do well in sub zero temperatures. There are many varieties to choose from either way. I live in a colder winter climate and have tried to plant cactus from seed but so far I have not had very good luck although. The Yucca plant is a type of cactus that grows both large and well here, it just doesn't happen to be a favorite of mine. Try the link below that talks about some of the different variates.

Answer 7

In many respects you can think of climate change as being a shift in climate zones – at least in respect of plants. Imagine that zone A is too cold for some species of plants to grow in, but in zone B they’re doing just fine. As the climate warms up zone A becomes more like zone B and so the plants that were originally growing in zone B can migrate into zone A. We’re already seeing many such shifts in the areas occupied by certain plants and animals as they migrate into regions that previously were unsuitable for them; in general this movement is in a poleward direction and into higher latitudes. Changing weather patterns means that the suitability of different regions will change in respect of the type of fauna and flora that flourishes there. For example, as dry areas become wetter there will be a greater abundance of plant and animal life, but conversely, there are wet areas that are becoming drier and as such there is a decline in the abundance and variety of species.

Answer 8

Some do and some don't. When it gets to a freezing point for several hours we put a light blanket on ours.

Answer 9

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Answer 10

NO.i dont think they does,as was meant to live and grows and survive in the dry environment,or where there is no sand full of water(wet soil) like normal weather fine

Answer 11

Depends on the cactus -- where it is from --and how subfreezing and for how long. What is your climate, then we could be more specific.