A small highly succulent plant that grows into a characteristic, fairly large, granite grey, almost perfect cube.
During the winter, the plants should never be kept at temperatures below 10°C but I’d aim for around 15°C since humidity tends to increase to unhealthy levels in most environments in the western hemisphere during the colder months. High humidity can also be a cause for the black rot that kills them so fast. The plants will need a vegetative rest during winter.
