Piante grasse cactus spine

Tag: cultivation

Repotting a succulent plant: what to do afterwards and how long to wait before wetting the soil

Anyone who has been cultivating succulent plants for a long time – whether they are cacti or other succulents such as Crassula, Euphorbia, etc. – knows well what should be done after transplanting, and he certainly knows that these plants should not be watered immediately at the end of this operation. However, there is repotting and repotting: there is the “invasive” one and the one that involves simply moving a plant from one pot to another. There is repotting which involves total cleaning of the roots and that which involves only a superficial cleaning of the old soil. In short, there are many situations and one can proceed in various ways. However, there are some fixed points and they must be respected if we want to avoid the risk that following this operation the plant will go into stress or, in the worst case, die following a rot that started right from the roots.

This is why this article, certainly useful to the novice, can prove equally useful to the long-term grower. In fact, here we will see the various types of possible repotting, the precautions to use and, above all, what to do (not only from the point of view of watering) once the repotting of a succulent is finished. (…)

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How to grow cactus: the handbook with the 10 things you absolutely need to know to avoid mistakes

Full sun? But what do you want to know, the window on the landing is enough! Substrate? I buy it ready at the supermarket, it’s perfect. The pots? The smaller the better: never leave more than half a centimeter between the plant and the edge of the pot… And so on, by dint of amenities, false beliefs, hearsay phrases that rapidly becomes dogma because… because it was said by that guy on Facebook and it’s immediately clear that he’s someone who knows about it because his videos has the right lights and Kubrick seems to have done the editing for him. Joking aside, how much nonsense do we still have to hear today about the cultivation of cacti? How many improvised “influencers” ride the crest of social media driven by the Mistral of likes (yes, likes, which in jargon are called “the metrics of vanity”…) and, supported by legions of followers and big thumbs up, they deliver lessons and conferences winking from the monitors, revealing “5 fantastic tricks you don’t know about cacti” or “how to go from seed to flowering plant in 35 seconds”. Or, with an attitude halfway between the conspiratorial and the revealer of esoteric secrets, they promise to teach you everything, absolutely everything about the cultivation of these splendid plants. Then, perhaps, you dig a little and discover that the influencer on duty has been growing cacti for 2 or 3 years – a gift from grandmother -, keeps them next to the PC or television (“you know, they absorb magnetic rays”), he can’t distinguish a Rebutia from a Begonia and has never bothered to leaf through any book on cacti and succulents. There are also influencers for plants, right? No. There are likeable and well-prepared characters, there are pretty faces who know something, but there is also a lot of “fluff” (forgive the old reporter’s term). So much wrong information, so much confusion and so much unpreparedness.

So, without any desire to offer you “The Word” with this article, here is a handbook, a list of ten things you need to know (or you should already know!) if you really want to cultivate your cacti in the best possible way. Without tricks or deceptions: here we are at the fundamentals, come on. But without these you go nowhere. And I am convinced that even those who, scrolling through the 10 points will say “ah yes, I know” ten times, will find in this handbook a useful tool for reviewing, asking themselves a few more questions and pushing themselves to improve. And rest assured, what follows does not come from the web, but from 30 years of experience in the field, of experiments and failures, from discussions with growers and scholars far more expert than me and from reading a few dozen manuals in Italian, English, French, Spanish (and also German, although in that case, I confess, I limited myself to photographs and captions, not knowing the Teutonic language!) (…)

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How to cultivate Melocactus, cacti that with age put on… the hat (“cephalium”)!

In the great botanical family of the Cactaceae the Melocactus represent a small “case apart”. In fact, these are cacti with a traditional globular shape tending towards a shorter cylinder as they age, but they have a peculiarity: over the years they “put on their hats”. In other words, the apex of these plants stops growing and a sort of “headdress” takes shape in its place, made up of a compact fluff mixed with thick and very thin thorns, usually red but sometimes white. This is the cephalium and this is where the flowers and fruits will come from. In a very bizarre way, over time it is only the cephalium that grows in height, so much so that the stems remain the same size, while the “hat” stretches towards the sky, giving these plants a truly unique appearance. The “however” of this story lies in the ease with which these cacti lose their roots and, even if they have not been affected by rot or parasites, they start to die. In other words, a  Melocactus  in full health often begins to slowly deteriorate and die, perhaps even taking two years, just because the root system has gone haywire and the plant has not been able to produce a new one.

Those who have been cultivating cacti for some time know it well:  Melocactus  are as fascinating as they are “capricious” and you have to come to terms with it. In this article we deepen the knowledge with this genus, in particular from the point of view of the needs, so as to grow robust specimens and limit losses as much as possible. (…)

Continue reading “How to cultivate Melocactus, cacti that with age put on… the hat (“cephalium”)!”

Seramis, an alternative material for growing cacti and succulent plants: pros and cons

Recently, on the social channels connected to the site, I published a short video in which I repot an Astrophytum asterias in a substrate composed solely of Seramis. Following that video, many asked me for information on this particular material with its characteristic orange colour, in fact little used in the cultivation of succulents and not easily available in small nurseries. I have had the opportunity to use Seramis in the past in the cultivation of some cactaceae and my experience has been decidedly positive (although, as a porous inert material, in my opinion pumice remains the best material ever) and it is also for this reason that I recently employed it for the Astrophytum subject of the video (video that you can also find at the end of this article).

Answering many questions received in recent weeks, let’s see in the following article what exactly Seramis is, what are the strengths and weaknesses of this material and what can be its use with succulents and, in particular, with cacti. (…)

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Here is the story of an Echinocactus grusonii born to lose but alive to win!

Would you throw away that specimen of Echinocactus grusonii you see in the photo above? Obviously the answer is no. Indeed, with such perfect thorns it would be a crime to let such a plant die. Nevertheless, a few years ago, when that plant was still a few months old seedling, I was about to throw it away! No, I hadn’t suddenly gone crazy, simply this plant, around 2015, was just one of the many grusonii seedlings obtained with a particularly lucky sowing (that is, characterized by high germination). What you see in the picture was the only seedling born from that sowing to have reached the stage of the first repotting in pitiful conditions, to the point that, convinced that it would not even pass the first repotting, I intended to throw it together with the sowing soil. Today, almost ten years later, that malformed, underdeveloped and sickly-looking seedling has become exactly as you see it in the photo I took a few days ago.

Here, in the following article, is the story of this plant, a plant that has been able to teach me an important lesson: never judge a book by its cover. In life as well as when dealing with Nature. (…)

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