Piante grasse cactus spine

Tag: seasonal care

The cacti, the spring that doesn’t come and the rain that doesn’t stop: should we be worried?

A spring that is struggling to establish itself, temperatures that fluctuate continuously with sunny and very hot days and gloomy days with the thermometer plummeting. Above all, heavy rain almost every day for at least a week, at least here in the North Italy. Many of us have already moved their cacti and succulents outside, or have removed the winter protections (non-woven fabric or transparent sheets). Many are worried, some run for cover by bringing the plants indoors, others are undecided about what to do… Is it really the case to worry about the combination of low temperatures and persistent rain?

In this article, here are some reflections and the answer to the question that many of you are asking me these days, as always based on what I have learned in years of cultivation (…).

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Be careful of winter blooms: rot can start from here. Here are the species at risk

Unfortunately it is a less rare phenomenon than one might think. The flower itself, the maximum expression of the plant, its instrument for reproducing and safeguarding the species, can transform itself into its executioner. With cacti, plants that require seasonal rest corresponding to the winter months, the flower can sometimes be fatal. It obviously only happens with those species that flower in mid-winter, therefore a small minority compared to all cacti. But it is often precisely from there, from that flower that blooms in November, December or January, that the rot is triggered and which, if neglected or not seen, can lead the specimen to death. This is what happened to two of my Ferocactus latispinus in recent days. Or rather, in the past few weeks, except that the damage has become apparent recently. And now it was too late to intervene and save the plants.

In this article we look into this phenomenon and see what can be done to prevent it or, at least, be able to intervene before the rot passes from the flower to the plant. (…)

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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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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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Sudden changes in temperature and first colds: with cacti and succulents there is nothing to fear

From the highest peak to the lowest, about thirty degrees Celsius passes. This is the sudden change in temperature to which my succulents (90% cacti) have been exposed in recent weeks, almost all kept in the greenhouse which is still rigorously open 24 hours a day. All the Agaves remain outside the greenhouse, some Aloes, various Opuntia, Tephrocactus, Pediocactus, some Echinopsis and some cacti that I placed in the ground for experimentation. Can such sudden changes in temperature damage plants? Are nighttime lows starting to get too low for cacti and succulents in general?

There are many who wonder and, since I have received several messages in this sense, I have decided to write this short article to answer these questions. (…)

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