Piante grasse cactus spine

Tag: repot

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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Repotting cacti in winter: here’s why and what are the advantages of this choice

Given that it is possible to repot cacti and succulent plants in almost all months of the year, for more than fifteen years I have been carrying out this operation during the winter, between December and February. If necessary, for example in the case of a suffering plant or a new purchase, I repot even in spring or in the middle of summer. I almost never repot in autumn, because in this period the plants begin to slow down their growth to start the winter stasis and I prefer to avoid “disturbing” this natural process, since repotting is always a small trauma for a plant.

We look at the benefits of repotting cacti and succulents over the winter in the article that follows. (…)

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Repotting cactus: the classic mix of pumice, lapillus and peat to speed up growth

I generally start repotting from mid-December onwards, to finish within the first few months of the new year. This year, considering the number of plants I sow that need repotting, I started well in advance. Despite the still high temperatures for the period, in fact, the plants are already in stasis and it is possible to proceed without problems. The repotting period is one of the most debated topics, together with the composition of the growing soils: there are those who repot only plants in vegetation, those only in spring, those during the winter and those who repot at any time of the year. Let’s say that there isn’t a fixed rule: over the years, I have repotted practically in all seasons, according to needs, and I have never encountered any problems. The important thing is to stick to that only really useful precaution which is to avoid watering immediately after repotting. It is necessary to give the damaged or cut roots time to heal in dry soil during repotting, so as to avoid the risk that they may trigger rot. The rest is a matter of choices. Personally I prefer to repot and change the soil to the plants during the winter season, or in any case when the cacti and succulents are in vegetative stasis, for example just before spring, so that several weeks elapse between repotting and the first watering. I’ve been following this “rule” for years and have never had a problem. Of course, it may happen that some plants find it difficult to restart after repotting, to the point of being stuck even for a whole year, but this can happen by repotting at any time. Let’s not forget that repotting is in any case a significant “stress” for plants. This is also why I prefer winter, when the cacti are at rest and the effects of repotting are less “traumatic”.

Let’s explore the topic of repotting and substrates for cacti, in particular the “standard” soil based on pumice, lapillus and peat in equal parts, in the following article. (…)

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Strengthening the thorns of cacti: a small experiment with some Ferocactus sowings

Based on the experiences of some growers, plants of the genus Ferocactus seem to appreciate the addition of calcareous material in the substrate. Above all, the thorns would benefit from it, which would be significantly strengthened compared to those of specimens grown in more “traditional” soils, for example the classic pumice, lapillus, peat mix in equal parts. Based on this consideration, I wanted to make an experiment with some of my sowings of Ferocactus acanthodes (seeds obtained from a dried fruit taken from an adult plant during a trip to Arizona) and Ferocactus latispinus. The acanthodes were born in 2013, while the latispinus are from 2010. Except for the seedling soil, which was based on peat, pumice and gravel, these plants grew up in the traditional compost with 30% fine peat and the rest pumice and lapillus in equal parts. I generally use this mix when I want to help seedlings develop more quickly, and then pass them into what I consider my “standard potting soil” made of sandy clay, pumice, gravel and 10% peat.

In the following article we see exactly what my experiment consists of, what type of soil I decided to use and above all we see the results with the photos taken two years after the test. (…)

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Repotting cacti: a few tips on how best to do it without… donating blood!

Repotting is often one of the reasons why many people steer clear of cacti. Maybe they like the plant, but the idea that sooner or later it has to be repotted, with all those thorns, frightens those who are new to this kind of plant. Many people even decide to give up on cacti for getting leafy succulents, which are much easier to deal with when repotting. In fact, even particularly prickly plants like Echinocactus grusonii or Ferocactus are not so complicated to repot. A little experience and a few “tricks”, and you can get out of it without literally having to “give blood”.

Let’s see how to proceed and all there is to know about repotting,
especially the most challenging ones due to the plant’s size and the thorns on the stem. (…)

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