Piante grasse cactus spine

Tag: cultivation

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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Identical cacti in different substrates: extraordinary results of my test and the surprise of natural gypsum

To those wondering to what extent the substrate affects the growth of cacti; for those wondering if natural gypsum (also called agricultural gypsum) can be useful in the formation of robust thorns, this article will certainly be useful. Article which is nothing but the update of a small experiment – one of the many I do with my plants – which I started in July 2020 and which gave surprising results, amazing me first. Yes, because although the test sample is limited (six plants in all) and the results are therefore to be considered indicative and far from absolute, I must confess that I did not expect such a response just over two and a half years after the start of this test. It is known that substrates can literally make the difference in the growth of cacti and that natural gypsum (at least with some species of cacti) is an exceptional element, but it is with direct evidence, with the experimental method that we can really appreciate the impact of the soil in the growth of our succulents.

In this article, therefore, we go into the details of the experiment and see, after more than two and a half years, the results I obtained, which in my opinion are remarkable. (…)

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Strange combinations of Nature: how did an onzuka end up in the pot of an old Thelocactus?

When many plants are grown in a relatively small space such as that offered by a greenhouse (however wide it can be), it can often happen to discover welcome surprises in the pots. Cacti whose flowers have been pollinated naturally by insects or self-fertile cacti, capable of doing everything by themselves, produce fruits which, once dry, split letting the seeds fall directly onto the soil at the base of the plant. This is how one can find specimens of a certain age surrounded by seedlings or small plants, in a sort of “potted” re-proposition of what commonly occurs in nature. In spite of what one might think by observing the precise procedures necessary for the reproduction of cacti, spontaneous sowing is a common phenomenon in cacti and is sometimes able to give real surprises, as has happened to me these days.

Here is a small report in the following article. (…)

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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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A good cactus potting soil with materials readily available in any nursery? Here is how to do it

Surfing the Internet shows how easy it is now to find retailers of plant-growing materials. It is also true specifically for cacti and succulent plants: online, from skilled nurserymen to businesses that deal only in materials such as potting soil, pots, labels, etc., it is easy to get everything you need to grow. But what to do if we don’t want to buy online? If we need large quantities of materials, and shipping can only go up to a certain weight? If we prefer to provide directly by buying potting soil (everyone may have their reasons for this or that choice)? Do we rely on the ready-made potting soils usually offered by any well-stocked nursery or garden? Or is it better to do it ourselves, assembling the various materials as peat, pumice, and sand, based on our needs?

In this article we see how to make a proper substrate for use with any genre of cactus and, with appropriate adjustments, with succulents, in general. We will make it, and this is the point of this article, with materials that anyone can now easily find in any place (…).

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