How to care for a cactus in winter?

coryphantha ramillosa

Coryphantha ramillosa

Cacti are a type of plants that you don't know what to do with when winter arrives: do they get indoors? Do they stop watering? Don't they fertilize them? These and many other doubts assail the minds of beginners (and not so beginners) every year.

We know that they come from the deserts of America and that therefore they do not like intense frosts, except for a few species, but How to take care of cacti in winter if they are not in their natural habitat?

The truth is that it is not as difficult as we imagine. But, yes, we have to be aware of one thing: Each teacher has his own booklet and that, therefore, we can find different advice on different Internet sites, books and magazines. Why? Because each teacher lives in a specific place, with its own climate.

For this reason, I am going to tell you, in general lines, the care that you should provide to your cactus during the coldest season of the year so that in this way you can enjoy the plant and, most importantly, get to know it.

Irrigation

Let's start with the essentials: irrigation. There are many who will tell you that you do not have to water them at all during the entire season; others that you have to water them at least once a month, and others every 15 days. Who to believe? None of them. 🙂

Observe your cactus, the soil it has, the location where it is. Pay attention to the weather reports in your area to see if there is a forecast or not of rain. To make it even easier for you to know whether to water or not, here are these tips:

  • If it's going to rain or freeze, don't water. The drier the soil, the better, since this way the roots will not be too affected.
  • Make sure the soil is dry before moistening it again. To do this, you can insert a thin wooden stick to the bottom and see if it comes out clean when you remove it, in which case you can water.
  • Use irrigation water at room temperature, unless you live in an area with a climate where frosts occur regularly. In this case, it is more advisable to warm it a little (about 35-37ºC).
  • Do not forget to remove the excess water from the cactus plate that you have outside 10 minutes after watering.
  • It is also not a good idea to let the plant become "wrinkled". When it reaches that extreme, it is because it has been so thirsty that to survive it has had to consume all the water reserve inside.

Location

We now turn to the location. Well, this is a slightly less complicated topic than the previous one, but equally often it is not known where to place this plant. To find the best answer, it must be taken into account that it must give direct sunlight (Unless you have bought it in a nursery where it was protected from the sun. In this situation, it is best to gradually accustom it to the sun, exposing it more and more time, starting in spring).

But, apart from the lighting, there are other factors to take into account so that everything goes well:

  • moisture: inside the home it has to be low since otherwise the cactus would rot even if it was not watered excessively.
  • air currents: if they are very cold it can be damaged.
  • frost: if they occur, it must be protected either inside the house or with a plastic.

Subscriber

»Fertilize cactus in winter? It's crazy, isn't it? No, it is not. Well, not always. Plants need to drink water, but also eat, to live. During the colder months of the year they hardly grow, but a mineral fertilizer can do them a lot of good, especially to those more sensitive species.

The Blue Nitrofoska, when it comes into contact with the roots, what it does is reheat them, protecting them from the low temperatures outside. A small teaspoon every 15 days can be a good way to better cope with the winter, and to be able to resume strong growth in spring.

I only advise against fertilizing those plants that are weak or diseased, as the roots could easily be burned by the fertilizer.

Astrophytum crassispinum

Astrophytum crassispinum

And nothing else for this season. With these tips we can already have some beautiful cacti, but if you have doubts, do not leave them in the inkwell. Question 😉.


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  1.   Nimcy Velazquez said

    Hola!
    Thanks for the article, very complete and it helped me a lot. But I have a lot of succulents and cacti recently planted, which are very small and just growing, how does it work with them, all the same?
    Irrigation, fertilizer, sunlight, etc.
    I will very much appreciate the guidance.
    Greetings! ?

    1.    Monica sanchez said

      Hi Nimcy.
      Each species has its needs. But in principle you should know that Haworthia, Gasteria and perhaps Sempervivum are the ones that prefer partial shade the most.
      With regard to irrigation and fertilizer, yes, more or less they all need the same. Anyway, in the blog we are publishing files in which we talk about the specific care that each one wants.
      A greeting.

  2.   Gem said

    Hello, I just started with the cactus thing
    I am a newcomer and I do not know very well which ones are the ones that can endure cold or not
    A little help pliss !!

    1.    Monica sanchez said

      Hi Gemma.
      In general, most withstand weak and specific frosts of up to -2 degrees Celsius. But there are some that last longer, like Espostoa, Oreocereus, many Echinopsis.

      If you have questions about any specific one, write us on Facebook and we will tell you.

      A greeting.

  3.   Ale said

    Hello, all my life I love cacti and succulents, now I live in a very humid area and I bought a cactus and it rotted without watering, and a succulent although it is firm I see it very open. What can I do to be good in this humid climate ???? Thanks

    1.    Monica sanchez said

      Hello Ale.
      It is important that you plant them with very, very porous soil, such as cheekbones, river sand or the like. And then, water but very little, maybe once every ten or fifteen days, or even less if it rains.

      Anyway, the ideal would be that you choose plants to have indoors. The gasterias, the haworthias and even the Sempervivum they can live well in indoor conditions.

      A greeting.

  4.   Rivered said

    Hello, I just started with the cacti, but now it's very cold and I can't take them indoors because my house is small, but two pots have dried up even though they have water, my friend told me to put a bag on it but I don't know which one it is. The exact procedure, that is, if I place it just like that or I make holes in it. Thanks

    1.    Monica sanchez said

      Hi Riverita.

      Yes, you have to make some holes so that the air can be renewed and, thus, prevent the proliferation of fungi.

      Regards!

  5.   Philip Riquelme said

    I have a mammillaria carnea, a hechinocereus rigidissimus and another yellow hechinocereus. At first I had them outside, on the terrace, protected from the rain. However, now with the arrival of winter, the frosts are great, and everything, even if it is protected with a roof, gets damp and wet. For the same, I took the option of entering them, while the harsh winter lasts, and placing them near a window (better safe than sorry)

    Greetings and thank you very much for the advice

    1.    Monica sanchez said

      Hello Felipe.

      Yes, you do well. If there are frosts it is better to protect them.

      regards