These are really particular and unusual succulents, in facts, they really look like cacti, although they are philogenetically very different from them. That’s because both cacti and Trichocaulon had to fit in a really arid and harsh environment, so they developed similiar structures: this is demonstrated by their columnar pale-green stems, usually erect, scaled or covered in nipple-like tubercles with a white thorn on them, which facilitate their growth on the arid and wild soils of their natural habitats. They are extremely appreciated and sought after for their flowers, with the most varied and particular textures, often purple with bright yellow veins, which give them a unique, dark and fascinating appearance at the same time. Here are some easy tips for its proper care and cultivation: They grow well in dimness but require a lot of undirected light. It is preferable to keep it at mild temperatures and never below 14 °C, for this reason it is recommended to place it in sheltered and ventilated locations during the winter period. Water moderately but only when the soil is completely dry. It is enough to water the plant once a week in spring and summer, once a month in autumn and to suspend watering completely in winter. The best option is a well-draining and porous soil, even better if further enriched with 50% of inert materials such as pumice or lapilli. They do not need frequent fertilization, it will be sufficient to dilute a specific fertilizer with watering once a year.