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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