Piante grasse cactus spine

Category: Cultivation

Everything you need to know to grow cacti and succulent plants: from watering to fertilization; from exposure to temperatures.

Summer is at the end of the line: until when can we water cacti and succulent plants?

The topic is a classic and the question is among the most frequently asked among cactus and succulent growers: until when can I water my plants? In other words, given that – as even less expert growers know – it is advisable to keep cacti cold and dry during the winter months until they can be watered, when exactly should we stop watering? And again: should watering be suspended completely or will it just have to be reduced? Are there cacti that can or should also be watered in autumn and winter? Are there any non-cacti succulent plants, especially those with leaves, which need to be watered even in the winter months, otherwise the branches and leaves will wither? It is clear that part of the answer to these questions can vary according to the place where we grow plants (there is a big difference, just to give an example in the Northern hemisphere, between Sicily and Great Britain, Spain or Germany), but in principle it can be said that there are many fixed points that every grower must know and respect in order for his succulents to grow healthy and robust and to flower profusely. Above all, there are some fixed points that must be respected to avoid, quite simply, rotting our cacti and succulent plants during the winter or early spring.

And since the period in which most of the cacti and succulents will go into vegetative stasis is approaching, it is advisable to deepen these fixed points and learn to at least distinguish the macro-water needs of the various families of succulents. This is exactly what we will do in the following article (…)

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What are cactus ‘suckers’ or pups? Is it better to remove them? Do they affect flowering?

Let’s talk about cactus pups o cactus suckers. Some call them “branches”, others call them “new heads”. Some, more prosaically, call them “children” of the mother plant or “pups”. In all cases, they are new “protuberances” that sprout around the body of the main plant.

In cacti, as well as in agaves, this is a common phenomenon, and in some species, it never happens, in others it very easily happens, even with young plants. Attention: we are not talking about true seedlings born under the stem of the mother plant from seeds that have fallen from the latter, but about authentic new bodies that are attached to the main stem and sprout from the latter, and then grow steadily in size. The correct term is “suckers”, and anyone who grows cacti or has looked at this plant family in a nursery or botanical garden will have seen one or more suckers. Why do cacti produce suckers or pups, which genera are more likely to suck and are less so? And again, the most frequently asked question: is it true that pups steal energy from the mother plant and reduce flowering? Can the suckers themselves blossom? Another frequently asked question: is it better to leave them attached to the mother plant or remove them? Can they be used as cuttings to obtain new plants identical to the mother plant, and in the event of disease of the latter, can they be detached to save it and reproduce it? In other words, how to propagate cactus pups?

In this article, we take a closer look at the subject and answer all these questions (…).

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Compositions with succulents: how to choose plants and what is important to know

Better to set the record straight right away: the topic of compositions has very little to do with the spirit of this site. In fact, we are just the opposite: on the one hand, the spartan approach that aims to obtain plants similar to those in habitat and that is the basis of my cultivation method; on the other hand, cultivation for aesthetic purposes only, which I do not practice but which we know very well is widespread. But life, as you know, is never all black or all white; some nuance must always be there…. So, here is an article accompanied by a video of mine on how to make a simple succulent plant arrangement. After all, an eye for aesthetics never hurts, and even I, who love “lived-in,” nature-like plants, do not disdain a well-done composition, as long as it is no-frills and made with respect for the needs of the individual plants. Warning: the theme may seem obvious and the subject matter very simple, but it’s not so and you will understand why in the next lines.  Assuming that in plant compositions everyone is free to do what they want, this is just an aesthetic field, that is, related to personal taste, if you want to make compositions that will last over time and that will not make the plants suffer or die quickly, it will be wise to choose the right essences judiciously and place them in the correct substrate.

Let’s see in this article how to correctly choose the plants for our compositions (…)

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When the cactus “spins”: what is etiolation, how to prevent it and contain the damage

An etiolated cactus is a plant with an unnatural habit and which has suffered from a more or less serious lack of light. The phenomenon is unfortunately irreversible but it is possible to prevent etiolation and stop it.

Who hasn’t happened at least once to observe in some office, apartment or even non-specialized nurseries (or garden) those cone-shaped cacti with thin spines and pale green stem? Cacti with a rounded base and an elongated apex, tapered to the point of giving the plant an almost pyramidal shape. The novice grower may think that is the normal bearing of the plant, but the grower with some experience – or even just a critical mind – usually is horrified at such plants. If anything, he or she may be saddened, because he or she knows full well that that is not the normal bearing of the cacti at all, but simply the outcome of what is technically called “etiolation” or, commonly, “spinning.” By the way, the photos above and those accompanying this article are of plants in a nursery and not mine, I want to make that clear right away!

Why does this fate happen to some cacti? How to avoid cactus etiolation and how to distinguish it from normal growth or from growth that is simply dissimilar to normal? Is it possible to remedy the damage caused by spinning on a cactus? We answer these questions in the following article. (…)

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Preparing cacti and succulents for spring: exposure, fertilizing, here’s what to do

Bright blooms, fleshy and brand-new leaves, sparkling spines sprouting from the vegetative apices: for succulent plants, spring represents a real rebirth. Here in Europe, the vegetative stasis that characterizes the winter of most succulent families ends between the second half of February and the beginning of March, when the plants gradually resume vegetation and reactivate the root system. For some families, the restart is evident: this is the case of Cactaceae, which already in February show new spines and often the first flower buds (genera such as Stenocactus, many species of Turbinicarpus, some Mammillaria, etc.). Also, leafy succulents such as Crassula, Echeveria, Portulacaria, Aloe, Adenium are well-known for producing new shoots, new branches and leaves. For other species as the Agavaceae family, the recovery is less evident: it slowly forms fresh sprouts at the centre of the apical rose, destined to be noticed only in a few months, when the separation of the true leaves will take place. Whether the recovery is sudden and flashy or slow and hidden, in March it’s essential to devote some extra care to succulents: in this way, it will be possible to obtain healthy and robust plants that show their full potential development and flowering.

Now let’s see everything we can do at this time of the year, especially if we don’t have a greenhouse and we grow on the windowsill, on the balcony, on a terrace or in the garden. With a warning: whatever you have to do, with succulents and cacti, you must not be in a hurry: hurry to water, hurry to treat, hurry to move the plants… Getting caught up in the rush, the anxiety, the fear of doing something wrong, is the best way to run into mistakes. So let’s see how to avoid them. (…)

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